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/MultiPhysics/Poroelasticity/FiniteElasticityDarcy/QuadraticEllipsoidDrivenDarcy/src/QuadraticEllipsoidDrivenDarcyExample.f90

http://github.com/xyan075/examples
FORTRAN Modern | 1124 lines | 649 code | 181 blank | 294 comment | 0 complexity | 065c8a8617ed85fdc58477d6f0c89bff MD5 | raw file
    

  1. !> \file
    2. 

  2. !> \author Christian Michler
    3. 

  3. !> \brief This is an example program to solve a coupled Finite Elastiticity Darcy equation on a cylindrical geometry using openCMISS calls.
    4. 

  4. !>
    5. 

  5. !> \section LICENSE
    6. 

  6. !>
    7. 

  7. !> Version: MPL 1.1/GPL 2.0/LGPL 2.1
    8. 

  8. !>
    9. 

  9. !> The contents of this file are subject to the Mozilla Public License
    10. 

  10. !> Version 1.1 (the "License"); you may not use this file except in
    11. 

  11. !> compliance with the License. You may obtain a copy of the License at
    12. 

  12. !> http://www.mozilla.org/MPL/
    13. 

  13. !>
    14. 

  14. !> Software distributed under the License is distributed on an "AS IS"
    15. 

  15. !> basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
    16. 

  16. !> License for the specific language governing rights and limitations
    17. 

  17. !> under the License.
    18. 

  18. !>
    19. 

  19. !> The Original Code is OpenCMISS
    20. 

  20. !>
    21. 

  21. !> The Initial Developer of the Original Code is University of Auckland,
    22. 

  22. !> Auckland, New Zealand and University of Oxford, Oxford, United
    23. 

  23. !> Kingdom. Portions created by the University of Auckland and University
    24. 

  24. !> of Oxford are Copyright (C) 2007 by the University of Auckland and
    25. 

  25. !> the University of Oxford. All Rights Reserved.
    26. 

  26. !>
    27. 

  27. !> Contributor(s): Christian Michler, Jack Lee
    28. 

  28. !>
    29. 

  29. !> Alternatively, the contents of this file may be used under the terms of
    30. 

  30. !> either the GNU General Public License Version 2 or later (the "GPL"), or
    31. 

  31. !> the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
    32. 

  32. !> in which case the provisions of the GPL or the LGPL are applicable instead
    33. 

  33. !> of those above. If you wish to allow use of your version of this file only
    34. 

  34. !> under the terms of either the GPL or the LGPL, and not to allow others to
    35. 

  35. !> use your version of this file under the terms of the MPL, indicate your
    36. 

  36. !> decision by deleting the provisions above and replace them with the notice
    37. 

  37. !> and other provisions required by the GPL or the LGPL. If you do not delete
    38. 

  38. !> the provisions above, a recipient may use your version of this file under
    39. 

  39. !> the terms of any one of the MPL, the GPL or the LGPL.
    40. 

  40. !>
    41. 

  41. 

  42. !> \example MultiPhysics/Poroelasticity/FiniteElasticityDarcy/QuadraticEllipsoidDrivenDarcy/src/QuadraticEllipsoidDrivenDarcyExample.f90
    43. 

  43. !! Example program to solve coupled FiniteElasticityDarcy equations using OpenCMISS calls.
    44. 

  44. !! \par Latest Builds:
    45. 

  45. !! \li <a href='http://autotest.bioeng.auckland.ac.nz/opencmiss-build/logs_x86_64-linux/MultiPhysics/Poroelasticity/FiniteElasticityDarcy/QuadraticEllipsoidDrivenDarcy/build-intel'>Linux Intel Build</a>
    46. 

  46. !! \li <a href='http://autotest.bioeng.auckland.ac.nz/opencmiss-build/logs_x86_64-linux/MultiPhysics/Poroelasticity/FiniteElasticityDarcy/QuadraticEllipsoidDrivenDarcy/build-intel'>Linux GNU Build</a>
    47. 

  47. !!
    48. 

  48. !<
    49. 

  49. 

  50. ! !
    51. 

  51. ! !  This example considers a coupled Finite Elasticity Darcy problem on a cylindrical geometry
    52. 

  52. ! !
    53. 

  53. 

  54. !> Main program
    55. 

  55. 

  56. PROGRAM QUADRATICELLIPSOIDDRIVENDARCYEXAMPLE
    57. 

  57. 

  58.   !
    59. 

  59.   !================================================================================================================================
    60. 

  60.   !
    61. 

  61. 

  62.   !PROGRAM LIBRARIES
    63. 

  63. 

  64.   USE OPENCMISS
    65. 

  65.   USE MPI
    66. 

  66. 

  67. #ifdef WIN32
    68. 

  68.   USE IFQWINCMISS
    69. 

  69. #endif
    70. 

  70. 

  71.   !
    72. 

  72.   !================================================================================================================================
    73. 

  73.   !
    74. 

  74. 

  75.   !PROGRAM VARIABLES AND TYPES
    76. 

  76. 

  77.   IMPLICIT NONE
    78. 

  78. 

  79.   !Test program parameters
    80. 

  80. 

  81.   REAL(CMISSDP), PARAMETER :: PI=3.14159_CMISSDP
    82. 

  82.   REAL(CMISSDP), PARAMETER :: LONG_AXIS=2.0_CMISSDP
    83. 

  83.   REAL(CMISSDP), PARAMETER :: SHORT_AXIS=1.0_CMISSDP
    84. 

  84.   REAL(CMISSDP), PARAMETER :: WALL_THICKNESS=0.5_CMISSDP
    85. 

  85.   REAL(CMISSDP), PARAMETER :: CUTOFF_ANGLE=1.5708_CMISSDP
    86. 

  86.   REAL(CMISSDP), PARAMETER :: FIBRE_SLOPE_INTERSECTION=1.73205_CMISSDP !Slope of fibres in base endocardium = 60 degrees
    87. 

  87.   REAL(CMISSDP), PARAMETER :: FIBRE_SLOPE_CHANGE=-3.4641_CMISSDP !Slope change of fibres from 60 to -60 degrees in transmural direction 
    88. 

  88.   REAL(CMISSDP), PARAMETER :: SHEET_SLOPE_BASE_ENDO=1.0_CMISSDP !Slope of sheet at base endocardium 
    89. 

  89. 

  90.   REAL(CMISSDP), PARAMETER :: INNER_PRESSURE=2.0_CMISSDP  !Positive is compressive
    91. 

  91.   REAL(CMISSDP), PARAMETER :: OUTER_PRESSURE=0.0_CMISSDP !Positive is compressive
    92. 

  92.   REAL(CMISSDP), PARAMETER :: C1= 2.0_CMISSDP
    93. 

  93.   REAL(CMISSDP), PARAMETER :: C2= 6.0_CMISSDP
    94. 

  94.   REAL(CMISSDP), PARAMETER :: C3=10.0_CMISSDP
    95. 

  95. 

  96.   INTEGER(CMISSIntg), PARAMETER :: NumberGlobalXElements=4  ! X ==NUMBER_GLOBAL_CIRCUMFERENTIAL_ELEMENTS
    97. 

  97.   INTEGER(CMISSIntg), PARAMETER :: NumberGlobalYElements=4  ! Y ==NUMBER_GLOBAL_LONGITUDINAL_ELEMENTS
    98. 

  98.   INTEGER(CMISSIntg), PARAMETER :: NumberGlobalZElements=2  ! Z ==NUMBER_GLOBAL_TRANSMURAL_ELEMENTS
    99. 

  99.   INTEGER(CMISSIntg) :: NumberOfDomains
    100. 

  100. 

  101.   INTEGER(CMISSIntg), PARAMETER :: CoordinateSystemUserNumber=1
    102. 

  102.   INTEGER(CMISSIntg), PARAMETER :: NumberOfSpatialCoordinates=3
    103. 

  103.   INTEGER(CMISSIntg), PARAMETER :: RegionUserNumber=1
    104. 

  104.   INTEGER(CMISSIntg), PARAMETER :: QuadraticBasisUserNumber=1
    105. 

  105.   INTEGER(CMISSIntg), PARAMETER :: QuadraticCollapsedBasisUserNumber=2
    106. 

  106.   INTEGER(CMISSIntg), PARAMETER :: LinearBasisUserNumber=3
    107. 

  107.   INTEGER(CMISSIntg), PARAMETER :: LinearCollapsedBasisUserNumber=4
    108. 

  108.   INTEGER(CMISSIntg), PARAMETER :: MeshUserNumber=1
    109. 

  109.   INTEGER(CMISSIntg), PARAMETER :: GeneratedMeshUserNumber=2
    110. 

  110.   INTEGER(CMISSIntg), PARAMETER :: DecompositionUserNumber=1
    111. 

  111.   INTEGER(CMISSIntg), PARAMETER :: DerivativeUserNumber=1
    112. 

  112. 

  113.   INTEGER(CMISSIntg), PARAMETER :: NumberOfMeshDimensions=3
    114. 

  114.   INTEGER(CMISSIntg), PARAMETER :: NumberOfXiCoordinates=3
    115. 

  115.   INTEGER(CMISSIntg), PARAMETER :: NumberOfMeshComponents=2
    116. 

  116.   INTEGER(CMISSIntg), PARAMETER :: QuadraticMeshComponentNumber=1
    117. 

  117.   INTEGER(CMISSIntg), PARAMETER :: LinearMeshComponentNumber=2
    118. 

  118.   INTEGER(CMISSIntg), PARAMETER :: TotalNumberOfElements=1
    119. 

  119. 

  120.   INTEGER(CMISSIntg), PARAMETER :: FieldGeometryUserNumberSolid=1
    121. 

  121.   INTEGER(CMISSIntg), PARAMETER :: FieldGeometryUserNumberDarcy=11
    122. 

  122.   INTEGER(CMISSIntg), PARAMETER :: FieldGeometryNumberOfVariables=1
    123. 

  123.   INTEGER(CMISSIntg), PARAMETER :: FieldGeometryNumberOfComponents=3
    124. 

  124. 

  125.   INTEGER(CMISSIntg), PARAMETER :: FieldFibreUserNumber=2
    126. 

  126.   INTEGER(CMISSIntg), PARAMETER :: FieldFibreNumberOfVariables=1
    127. 

  127.   INTEGER(CMISSIntg), PARAMETER :: FieldFibreNumberOfComponents=3
    128. 

  128. 

  129.   INTEGER(CMISSIntg), PARAMETER :: FieldMaterialUserNumber=3
    130. 

  130.   INTEGER(CMISSIntg), PARAMETER :: FieldMaterialNumberOfVariables=1
    131. 

  131.   INTEGER(CMISSIntg), PARAMETER :: FieldMaterialNumberOfComponents=3 !2
    132. 

  132. 

  133.   INTEGER(CMISSIntg), PARAMETER :: FieldDependentUserNumber=4
    134. 

  134.   INTEGER(CMISSIntg), PARAMETER :: FieldDependentNumberOfVariables=4 !2
    135. 

  135.   INTEGER(CMISSIntg), PARAMETER :: FieldDependentSolidNumberOfComponents=4
    136. 

  136.   INTEGER(CMISSIntg), PARAMETER :: FieldDependentFluidNumberOfComponents=4
    137. 

  137. 

  138.   INTEGER(CMISSIntg), PARAMETER :: IndependentFieldDarcyUserNumber=15
    139. 

  139. 

  140.   INTEGER(CMISSIntg), PARAMETER :: EquationSetUserNumberSolid=1
    141. 

  141.   INTEGER(CMISSIntg), PARAMETER :: EquationsSetFieldUserNumberSolid=13
    142. 

  142.   INTEGER(CMISSIntg), PARAMETER :: ProblemUserNumber=1
    143. 

  143. 

  144. 

  145.   INTEGER(CMISSIntg), PARAMETER :: MaterialsFieldUserNumberDarcy=8
    146. 

  146.   INTEGER(CMISSIntg), PARAMETER :: EquationsSetUserNumberDarcy=12
    147. 

  147.   INTEGER(CMISSIntg), PARAMETER :: EquationsSetFieldUserNumberDarcy=22
    148. 

  148.   INTEGER(CMISSIntg), PARAMETER :: SourceFieldDarcyUserNumber=42
    149. 

  149. 

  150.   INTEGER(CMISSIntg), PARAMETER :: ControlLoopSolidNumber=1
    151. 

  151.   INTEGER(CMISSIntg), PARAMETER :: ControlLoopFluidNumber=2
    152. 

  152.   INTEGER(CMISSIntg), PARAMETER :: ControlLoopSubiterationNumber=1
    153. 

  153.   INTEGER(CMISSIntg), PARAMETER :: SolverSolidIndex=1
    154. 

  154.   INTEGER(CMISSIntg), PARAMETER :: SolverDarcyIndex=1
    155. 

  155. 

  156.   !Program types
    157. 

  157. 

  158. 

  159.   !Program variables
    160. 

  160. 

  161.   INTEGER(CMISSIntg) :: MPI_IERROR
    162. 

  162.   INTEGER(CMISSIntg) :: EquationsSetIndex  
    163. 

  163.   INTEGER(CMISSIntg) :: NumberOfComputationalNodes,ComputationalNodeNumber
    164. 

  164.   REAL(CMISSDP) :: FibreFieldAngle(3) 
    165. 

  165.   REAL(CMISSDP) :: nu,theta,omega,XI3,XI3delta,XI2delta, zero
    166. 

  166.   INTEGER(CMISSIntg) ::i,j,k,component_idx,node_idx,TOTAL_NUMBER_NODES_XI(3)
    167. 

  167.   !For grabbing surfaces
    168. 

  168.   INTEGER(CMISSIntg) :: InnerNormalXi,OuterNormalXi,TopNormalXi
    169. 

  169.   INTEGER(CMISSIntg), ALLOCATABLE :: InnerSurfaceNodes(:)
    170. 

  170.   INTEGER(CMISSIntg), ALLOCATABLE :: OuterSurfaceNodes(:)
    171. 

  171.   INTEGER(CMISSIntg), ALLOCATABLE :: TopSurfaceNodes(:)
    172. 

  172.   INTEGER(CMISSIntg), ALLOCATABLE :: TopSurfaceNodesDarcyVel(:)
    173. 

  173.   INTEGER(CMISSIntg), ALLOCATABLE :: InnerSurfaceNodesDarcyVel(:)
    174. 

  174.   INTEGER(CMISSIntg), ALLOCATABLE :: OuterSurfaceNodesDarcyVel(:)
    175. 

  175.   INTEGER(CMISSIntg) :: NN,NODE,NodeDomain
    176. 

  176.   REAL(CMISSDP) :: XCoord,YCoord,ZCoord
    177. 

  177.   LOGICAL :: X_FIXED,Y_FIXED,X_OKAY,Y_OKAY
    178. 

  178. 

  179.   INTEGER(CMISSIntg) :: GeometricFieldDarcyMeshComponentNumber, DarcyVelMeshComponentNumber, DarcyMassIncreaseMeshComponentNumber
    180. 

  180.   INTEGER(CMISSIntg) :: MeshComponentNumber_dummy
    181. 

  181. 

  182.   INTEGER(CMISSIntg) :: NUMBER_OF_DOMAINS
    183. 

  183. 

  184.   INTEGER(CMISSIntg) :: NUMBER_OF_DIMENSIONS
    185. 

  185. 

  186.   INTEGER(CMISSIntg) :: MAXIMUM_ITERATIONS
    187. 

  187.   INTEGER(CMISSIntg) :: RESTART_VALUE
    188. 

  188. 

  189.   INTEGER(CMISSIntg) :: EQUATIONS_DARCY_OUTPUT
    190. 

  190.   INTEGER(CMISSIntg) :: COMPONENT_NUMBER, NODE_NUMBER
    191. 

  191.   INTEGER(CMISSIntg) :: CONDITION
    192. 

  192. 

  193.   INTEGER(CMISSIntg) :: DYNAMIC_SOLVER_DARCY_OUTPUT_FREQUENCY
    194. 

  194.   INTEGER(CMISSIntg) :: DYNAMIC_SOLVER_DARCY_OUTPUT_TYPE
    195. 

  195.   INTEGER(CMISSIntg) :: LINEAR_SOLVER_DARCY_OUTPUT_TYPE
    196. 

  196. 

  197.   REAL(CMISSDP) :: COORD_X, COORD_Y, COORD_Z
    198. 

  198.   REAL(CMISSDP) :: DOMAIN_X1, DOMAIN_X2, DOMAIN_Y1, DOMAIN_Y2, DOMAIN_Z1, DOMAIN_Z2
    199. 

  199.   REAL(CMISSDP) :: GEOMETRY_TOLERANCE
    200. 

  200.   INTEGER(CMISSIntg) :: EDGE_COUNT
    201. 

  201.   INTEGER(CMISSIntg) :: BASIS_XI_INTERPOLATION_SOLID
    202. 

  202.   REAL(CMISSDP) :: INITIAL_FIELD_DARCY(4)
    203. 

  203.   REAL(CMISSDP) :: DIVERGENCE_TOLERANCE
    204. 

  204.   REAL(CMISSDP) :: RELATIVE_TOLERANCE
    205. 

  205.   REAL(CMISSDP) :: ABSOLUTE_TOLERANCE
    206. 

  206.   REAL(CMISSDP) :: LINESEARCH_ALPHA
    207. 

  207.   REAL(CMISSDP) :: VALUE
    208. 

  208.   REAL(CMISSDP) :: POROSITY_PARAM_DARCY, PERM_OVER_VIS_PARAM_DARCY
    209. 

  209. 

  210.   LOGICAL :: EXPORT_FIELD_IO
    211. 

  211.   LOGICAL :: LINEAR_SOLVER_DARCY_DIRECT_FLAG
    212. 

  212. 

  213.   !CMISS variables
    214. 

  214. 

  215.   TYPE(CMISSBasisType) :: QuadraticBasis,QuadraticCollapsedBasis,LinearBasis,LinearCollapsedBasis
    216. 

  216.   TYPE(CMISSBoundaryConditionsType) :: BoundaryConditions
    217. 

  217.   TYPE(CMISSCoordinateSystemType) :: CoordinateSystem, WorldCoordinateSystem
    218. 

  218.   TYPE(CMISSMeshType) :: Mesh
    219. 

  219.   TYPE(CMISSGeneratedMeshType) :: GeneratedMesh
    220. 

  220.   TYPE(CMISSDecompositionType) :: Decomposition
    221. 

  221.   TYPE(CMISSEquationsType) :: Equations
    222. 

  222.   TYPE(CMISSEquationsSetType) :: EquationsSetSolid
    223. 

  223.   TYPE(CMISSFieldType) :: GeometricFieldSolid,FibreFieldSolid,MaterialFieldSolid
    224. 

  224.   TYPE(CMISSFieldType) :: DependentField,EquationsSetFieldSolid
    225. 

  225. 

  226.   TYPE(CMISSFieldType) :: IndependentFieldDarcy
    227. 

  227. 

  228.   TYPE(CMISSFieldType) :: GeometricFieldDarcy
    229. 

  229. 

  230.   TYPE(CMISSFieldType) :: MaterialsFieldDarcy
    231. 

  231.   TYPE(CMISSFieldType) :: EquationsSetFieldDarcy
    232. 

  232.   TYPE(CMISSFieldType) :: SourceFieldDarcy
    233. 

  233.   !Boundary conditions
    234. 

  234.   TYPE(CMISSBoundaryConditionsType) :: BoundaryConditionsDarcy
    235. 

  235.   !Equations sets
    236. 

  236.   TYPE(CMISSEquationsSetType) :: EquationsSetDarcy
    237. 

  237.   !Equations
    238. 

  238.   TYPE(CMISSEquationsType) :: EquationsDarcy
    239. 

  239. 

  240.   TYPE(CMISSFieldsType) :: Fields
    241. 

  241.   TYPE(CMISSProblemType) :: Problem
    242. 

  242.   TYPE(CMISSRegionType) :: Region,WorldRegion
    243. 

  243.   TYPE(CMISSSolverType) :: SolverSolid,LinearSolverSolid
    244. 

  244.   TYPE(CMISSSolverEquationsType) :: SolverEquationsSolid
    245. 

  245.   TYPE(CMISSControlLoopType) :: ControlLoop
    246. 

  246. 

  247.   !Solvers
    248. 

  248.   TYPE(CMISSSolverType) :: DynamicSolverDarcy
    249. 

  249.   TYPE(CMISSSolverType) :: LinearSolverDarcy
    250. 

  250.   !Solver equations
    251. 

  251.   TYPE(CMISSSolverEquationsType) :: SolverEquationsDarcy
    252. 

  252. 

  253.   REAL(CMISSDP) :: DYNAMIC_SOLVER_DARCY_START_TIME
    254. 

  254.   REAL(CMISSDP) :: DYNAMIC_SOLVER_DARCY_STOP_TIME
    255. 

  255.   REAL(CMISSDP) :: DYNAMIC_SOLVER_DARCY_THETA
    256. 

  256.   REAL(CMISSDP) :: DYNAMIC_SOLVER_DARCY_TIME_INCREMENT
    257. 

  257. 

  258.   INTEGER(CMISSIntg),allocatable :: ElementUserNodes(:)
    259. 

  259.   INTEGER(CMISSIntg) :: NUMBER_USER_ELEMENT_NODES, ELEMENT_NUMBER
    260. 

  260. 

  261. #ifdef WIN32
    262. 

  262.   !Quickwin type
    263. 

  263.   LOGICAL :: QUICKWIN_STATUS=.FALSE.
    264. 

  264.   TYPE(WINDOWCONFIG) :: QUICKWIN_WINDOW_CONFIG
    265. 

  265. #endif
    266. 

  266. 

  267.   !Generic CMISS variables
    268. 

  268.   INTEGER(CMISSIntg) :: Err
    269. 

  269. 

  270. #ifdef WIN32
    271. 

  271.   !Initialise QuickWin
    272. 

  272.   QUICKWIN_WINDOW_CONFIG%TITLE="General Output" !Window title
    273. 

  273.   QUICKWIN_WINDOW_CONFIG%NUMTEXTROWS=-1 !Max possible number of rows
    274. 

  274.   QUICKWIN_WINDOW_CONFIG%MODE=QWIN$SCROLLDOWN
    275. 

  275.   !Set the window parameters
    276. 

  276.   QUICKWIN_STATUS=SETWINDOWCONFIG(QUICKWIN_WINDOW_CONFIG)
    277. 

  277.   !If attempt fails set with system estimated values
    278. 

  278.   IF(.NOT.QUICKWIN_STATUS) QUICKWIN_STATUS=SETWINDOWCONFIG(QUICKWIN_WINDOW_CONFIG)
    279. 

  279. #endif
    280. 

  280. 

  281.   !Set initial values
    282. 

  282.   INITIAL_FIELD_DARCY(1)=0.0_CMISSDP
    283. 

  283.   INITIAL_FIELD_DARCY(2)=0.0_CMISSDP
    284. 

  284.   INITIAL_FIELD_DARCY(3)=0.0_CMISSDP
    285. 

  285.   INITIAL_FIELD_DARCY(4)=0.0_CMISSDP
    286. 

  286.   !Set material parameters
    287. 

  287.   POROSITY_PARAM_DARCY=0.1_CMISSDP
    288. 

  288.   PERM_OVER_VIS_PARAM_DARCY=1.0_CMISSDP
    289. 

  289.   !Set output parameter
    290. 

  290.   !(NoOutput/ProgressOutput/TimingOutput/SolverOutput/SolverMatrixOutput)
    291. 

  291.   DYNAMIC_SOLVER_DARCY_OUTPUT_TYPE=CMISS_SOLVER_PROGRESS_OUTPUT
    292. 

  292.   LINEAR_SOLVER_DARCY_OUTPUT_TYPE=CMISS_SOLVER_SOLVER_OUTPUT
    293. 

  293.   !(NoOutput/TimingOutput/MatrixOutput/ElementOutput)
    294. 

  294.   EQUATIONS_DARCY_OUTPUT=CMISS_EQUATIONS_NO_OUTPUT
    295. 

  295. 

  296.   !Set time parameter
    297. 

  297.   DYNAMIC_SOLVER_DARCY_START_TIME=1.0E-3_CMISSDP
    298. 

  298.   DYNAMIC_SOLVER_DARCY_TIME_INCREMENT=1.0e-3_CMISSDP
    299. 

  299.   DYNAMIC_SOLVER_DARCY_STOP_TIME=2_CMISSIntg * DYNAMIC_SOLVER_DARCY_TIME_INCREMENT
    300. 

  300.   DYNAMIC_SOLVER_DARCY_THETA=1.0_CMISSDP !2.0_CMISSDP/3.0_CMISSDP
    301. 

  301.   !Set result output parameter
    302. 

  302.   DYNAMIC_SOLVER_DARCY_OUTPUT_FREQUENCY=1
    303. 

  303.   !Set solver parameters
    304. 

  304.   LINEAR_SOLVER_DARCY_DIRECT_FLAG=.TRUE.
    305. 

  305.   RELATIVE_TOLERANCE=1.0E-10_CMISSDP !default: 1.0E-05_CMISSDP
    306. 

  306.   ABSOLUTE_TOLERANCE=1.0E-10_CMISSDP !default: 1.0E-10_CMISSDP
    307. 

  307.   DIVERGENCE_TOLERANCE=1.0E5_CMISSDP !default: 1.0E5
    308. 

  308.   MAXIMUM_ITERATIONS=10000_CMISSIntg !default: 100000
    309. 

  309.   RESTART_VALUE=30_CMISSIntg !default: 30
    310. 

  310.   LINESEARCH_ALPHA=1.0_CMISSDP
    311. 

  311. 

  312. 

  313.   !LinearMeshComponentNumber/QuadraticMeshComponentNumber
    314. 

  314.   DarcyVelMeshComponentNumber = LinearMeshComponentNumber
    315. 

  315.   DarcyMassIncreaseMeshComponentNumber = LinearMeshComponentNumber
    316. 

  316. !   GeometricFieldDarcyMeshComponentNumber = DarcyVelMeshComponentNumber
    317. 

  317.   GeometricFieldDarcyMeshComponentNumber = QuadraticMeshComponentNumber
    318. 

  318. 

  319. 

  320.   !
    321. 

  321.   !================================================================================================================================
    322. 

  322.   !
    323. 

  323. 

  324.   !Intialise cmiss
    325. 

  325.   CALL CMISSInitialise(WorldCoordinateSystem,WorldRegion,Err)
    326. 

  326. 

  327.   CALL CMISSErrorHandlingModeSet(CMISS_ERRORS_TRAP_ERROR,Err)
    328. 

  328. 

  329.   WRITE(*,'(A)') "Program starting."
    330. 

  330. 

  331.   !Set all diganostic levels on for testing
    332. 

  332.   CALL CMISSDiagnosticsSetOn(CMISS_FROM_DIAG_TYPE,(/1,2,3,4,5/),"Diagnostics",(/"PROBLEM_FINITE_ELEMENT_CALCULATE"/),Err)
    333. 

  333. 

  334.   !Get the number of computational nodes and this computational node number
    335. 

  335.   CALL CMISSComputationalNumberOfNodesGet(NumberOfComputationalNodes,Err)
    336. 

  336.   CALL CMISSComputationalNodeNumberGet(ComputationalNodeNumber,Err)
    337. 

  337. 

  338.   !Broadcast the number of elements in the X,Y and Z directions and the number of partitions to the other computational nodes
    339. 

  339. !   CALL MPI_BCAST(NumberGlobalXElements,1,MPI_INTEGER,0,MPI_COMM_WORLD,MPI_IERROR)
    340. 

  340. !   CALL MPI_BCAST(NumberGlobalYElements,1,MPI_INTEGER,0,MPI_COMM_WORLD,MPI_IERROR)
    341. 

  341. !   CALL MPI_BCAST(NumberGlobalZElements,1,MPI_INTEGER,0,MPI_COMM_WORLD,MPI_IERROR)
    342. 

  342. !   CALL MPI_BCAST(NumberOfDomains,1,MPI_INTEGER,0,MPI_COMM_WORLD,MPI_IERROR)
    343. 

  343.   NumberOfDomains=NumberOfComputationalNodes
    344. 

  344. 

  345.   !Create a CS - default is 3D rectangular cartesian CS with 0,0,0 as origin
    346. 

  346.   CALL CMISSCoordinateSystem_Initialise(CoordinateSystem,Err)
    347. 

  347.   CALL CMISSCoordinateSystem_CreateStart(CoordinateSystemUserNumber,CoordinateSystem,Err)
    348. 

  348.   CALL CMISSCoordinateSystem_TypeSet(CoordinateSystem,CMISS_COORDINATE_RECTANGULAR_CARTESIAN_TYPE,Err)
    349. 

  349.   CALL CMISSCoordinateSystem_DimensionSet(CoordinateSystem,NumberOfSpatialCoordinates,Err)
    350. 

  350.   CALL CMISSCoordinateSystem_OriginSet(CoordinateSystem,(/0.0_CMISSDP,0.0_CMISSDP,0.0_CMISSDP/),Err)
    351. 

  351.   CALL CMISSCoordinateSystem_CreateFinish(CoordinateSystem,Err)
    352. 

  352. 

  353.   !
    354. 

  354.   !================================================================================================================================
    355. 

  355.   !
    356. 

  356. 

  357.   !Create a region and assign the CS to the region
    358. 

  358.   CALL CMISSRegion_Initialise(Region,Err)
    359. 

  359.   CALL CMISSRegion_CreateStart(RegionUserNumber,WorldRegion,Region,Err)
    360. 

  360.   CALL CMISSRegion_CoordinateSystemSet(Region,CoordinateSystem,Err)
    361. 

  361.   CALL CMISSRegion_CreateFinish(Region,Err)
    362. 

  362. 

  363.   !
    364. 

  364.   !================================================================================================================================
    365. 

  365.   !
    366. 

  366. 

  367.   !Define basis functions - tri-linear Lagrange and tri-Quadratic Lagrange, each with collapsed variant
    368. 

  368.     !Quadratic Basis
    369. 

  369.   CALL CMISSBasis_Initialise(QuadraticBasis,Err)
    370. 

  370.   CALL CMISSBasis_CreateStart(QuadraticBasisUserNumber,QuadraticBasis,Err)
    371. 

  371.   CALL CMISSBasis_InterpolationXiSet(QuadraticBasis,(/CMISS_BASIS_QUADRATIC_LAGRANGE_INTERPOLATION, &
    372. 

  372.     & CMISS_BASIS_QUADRATIC_LAGRANGE_INTERPOLATION,CMISS_BASIS_QUADRATIC_LAGRANGE_INTERPOLATION/),Err)
    373. 

  373.   CALL CMISSBasis_QuadratureNumberOfGaussXiSet(QuadraticBasis, &
    374. 

  374.     & (/CMISS_BASIS_MID_QUADRATURE_SCHEME,CMISS_BASIS_MID_QUADRATURE_SCHEME,CMISS_BASIS_MID_QUADRATURE_SCHEME/),Err)
    375. 

  375. !     & (/CMISS_BASIS_HIGH_QUADRATURE_SCHEME,CMISS_BASIS_HIGH_QUADRATURE_SCHEME,CMISS_BASIS_HIGH_QUADRATURE_SCHEME/),Err)
    376. 

  376.   CALL CMISSBasis_QuadratureLocalFaceGaussEvaluateSet(QuadraticBasis,.true.,Err) !Have to do this
    377. 

  377.   CALL CMISSBasis_CreateFinish(QuadraticBasis,Err)
    378. 

  378.   
    379. 

  379.     !Collapsed Quadratic Basis
    380. 

  380.   CALL CMISSBasis_Initialise(QuadraticCollapsedBasis,Err)
    381. 

  381.   CALL CMISSBasis_CreateStart(QuadraticCollapsedBasisUserNumber,QuadraticCollapsedBasis,Err)
    382. 

  382.   CALL CMISSBasis_TypeSet(QuadraticCollapsedBasis,CMISS_BASIS_LAGRANGE_HERMITE_TP_TYPE,Err)
    383. 

  383.   CALL CMISSBasis_NumberOfXiSet(QuadraticCollapsedBasis,NumberOfXiCoordinates,Err)
    384. 

  384.   CALL CMISSBasis_InterpolationXiSet(QuadraticCollapsedBasis,(/CMISS_BASIS_QUADRATIC_LAGRANGE_INTERPOLATION, &
    385. 

  385.        & CMISS_BASIS_QUADRATIC_LAGRANGE_INTERPOLATION,CMISS_BASIS_QUADRATIC_LAGRANGE_INTERPOLATION/),Err)
    386. 

  386.   CALL CMISSBasis_CollapsedXiSet(QuadraticCollapsedBasis,(/CMISS_BASIS_XI_COLLAPSED, &
    387. 

  387.        & CMISS_BASIS_COLLAPSED_AT_XI0,CMISS_BASIS_NOT_COLLAPSED/),Err)
    388. 

  388.   CALL CMISSBasis_QuadratureNumberOfGaussXiSet(QuadraticCollapsedBasis, &
    389. 

  389.        & (/CMISS_BASIS_MID_QUADRATURE_SCHEME,CMISS_BASIS_MID_QUADRATURE_SCHEME,CMISS_BASIS_MID_QUADRATURE_SCHEME/),Err)  
    390. 

  390. !     & (/CMISS_BASIS_HIGH_QUADRATURE_SCHEME,CMISS_BASIS_HIGH_QUADRATURE_SCHEME,CMISS_BASIS_HIGH_QUADRATURE_SCHEME/),Err)
    391. 

  391.   CALL CMISSBasis_QuadratureLocalFaceGaussEvaluateSet(QuadraticCollapsedBasis,.true.,Err) !Have to do this
    392. 

  392.   CALL CMISSBasis_CreateFinish(QuadraticCollapsedBasis,Err)
    393. 

  393. 

  394.     !Linear Basis
    395. 

  395.   CALL CMISSBasis_Initialise(LinearBasis,Err)
    396. 

  396.   CALL CMISSBasis_CreateStart(LinearBasisUserNumber,LinearBasis,Err)
    397. 

  397.   CALL CMISSBasis_QuadratureNumberOfGaussXiSet(LinearBasis, &
    398. 

  398.     & (/CMISS_BASIS_MID_QUADRATURE_SCHEME,CMISS_BASIS_MID_QUADRATURE_SCHEME,CMISS_BASIS_MID_QUADRATURE_SCHEME/),Err)
    399. 

  399. !     & (/CMISS_BASIS_HIGH_QUADRATURE_SCHEME,CMISS_BASIS_HIGH_QUADRATURE_SCHEME,CMISS_BASIS_HIGH_QUADRATURE_SCHEME/),Err)
    400. 

  400.   CALL CMISSBasis_QuadratureLocalFaceGaussEvaluateSet(LinearBasis,.true.,Err) !Have to do this (unused) due to field_interp setup
    401. 

  401.   CALL CMISSBasis_CreateFinish(LinearBasis,Err)
    402. 

  402. 

  403.     !Collapsed Linear Basis
    404. 

  404.   CALL CMISSBasis_Initialise(LinearCollapsedBasis,Err)
    405. 

  405.   CALL CMISSBasis_CreateStart(LinearCollapsedBasisUserNumber,LinearCollapsedBasis,Err)
    406. 

  406.   CALL CMISSBasis_TypeSet(LinearCollapsedBasis,CMISS_BASIS_LAGRANGE_HERMITE_TP_TYPE,Err)
    407. 

  407.   CALL CMISSBasis_NumberOfXiSet(LinearCollapsedBasis,NumberOfXiCoordinates,Err)
    408. 

  408.   CALL CMISSBasis_InterpolationXiSet(LinearCollapsedBasis,(/CMISS_BASIS_LINEAR_LAGRANGE_INTERPOLATION, &
    409. 

  409.        & CMISS_BASIS_LINEAR_LAGRANGE_INTERPOLATION,CMISS_BASIS_LINEAR_LAGRANGE_INTERPOLATION/),Err)
    410. 

  410.   CALL CMISSBasis_CollapsedXiSet(LinearCollapsedBasis,(/CMISS_BASIS_XI_COLLAPSED,CMISS_BASIS_COLLAPSED_AT_XI0, &
    411. 

  411.     & CMISS_BASIS_NOT_COLLAPSED/),Err)
    412. 

  412.   CALL CMISSBasis_QuadratureNumberOfGaussXiSet(LinearCollapsedBasis, &
    413. 

  413.        & (/CMISS_BASIS_MID_QUADRATURE_SCHEME,CMISS_BASIS_MID_QUADRATURE_SCHEME,CMISS_BASIS_MID_QUADRATURE_SCHEME/),Err)
    414. 

  414. !     & (/CMISS_BASIS_HIGH_QUADRATURE_SCHEME,CMISS_BASIS_HIGH_QUADRATURE_SCHEME,CMISS_BASIS_HIGH_QUADRATURE_SCHEME/),Err)
    415. 

  415.   CALL CMISSBasis_QuadratureLocalFaceGaussEvaluateSet(LinearCollapsedBasis,.true.,Err) !Have to do this (unused) due to field_interp setup
    416. 

  416.   CALL CMISSBasis_CreateFinish(LinearCollapsedBasis,Err)
    417. 

  417. 

  418.   !
    419. 

  419.   !================================================================================================================================
    420. 

  420.   !
    421. 

  421. 

  422.   !Start the creation of a generated ellipsoid mesh
    423. 

  423.   CALL CMISSGeneratedMesh_Initialise(GeneratedMesh,Err)
    424. 

  424.   CALL CMISSGeneratedMesh_CreateStart(GeneratedMeshUserNumber,Region,GeneratedMesh,Err)
    425. 

  425.   !Set up an ellipsoid mesh
    426. 

  426.   CALL CMISSGeneratedMesh_TypeSet(GeneratedMesh,CMISS_GENERATED_MESH_ELLIPSOID_MESH_TYPE,Err)
    427. 

  427.   !Set the quadratic and linear bases
    428. 

  428.   CALL CMISSGeneratedMesh_BasisSet(GeneratedMesh,[QuadraticBasis,QuadraticCollapsedBasis,LinearBasis,LinearCollapsedBasis],Err)
    429. 

  429.   !Define the mesh on the region
    430. 

  430.   CALL CMISSGeneratedMesh_ExtentSet(GeneratedMesh,(/LONG_AXIS,SHORT_AXIS,WALL_THICKNESS,CUTOFF_ANGLE/),Err)
    431. 

  431.   CALL CMISSGeneratedMesh_NumberOfElementsSet(GeneratedMesh,(/NumberGlobalXElements,NumberGlobalYElements, &
    432. 

  432.     & NumberGlobalZElements/),Err)
    433. 

  433.   
    434. 

  434.   !Finish the creation of a generated mesh in the region
    435. 

  435.   CALL CMISSMesh_Initialise(Mesh,Err)
    436. 

  436.   CALL CMISSGeneratedMesh_CreateFinish(GeneratedMesh,MeshUserNumber,Mesh,Err)
    437. 

  437. 

  438.   !
    439. 

  439.   !================================================================================================================================
    440. 

  440.   !
    441. 

  441. 

  442.   !Create a decomposition
    443. 

  443.   CALL CMISSDecomposition_Initialise(Decomposition,Err)
    444. 

  444.   CALL CMISSDecomposition_CreateStart(DecompositionUserNumber,Mesh,Decomposition,Err)
    445. 

  445.   CALL CMISSDecomposition_TypeSet(Decomposition,CMISS_DECOMPOSITION_CALCULATED_TYPE,Err)
    446. 

  446.   CALL CMISSDecomposition_NumberOfDomainsSet(Decomposition,NumberOfDomains,Err)
    447. 

  447.   CALL CMISSDecomposition_CalculateFacesSet(Decomposition,.TRUE.,Err)
    448. 

  448.   CALL CMISSDecomposition_CreateFinish(Decomposition,Err)
    449. 

  449. 

  450.   !
    451. 

  451.   !================================================================================================================================
    452. 

  452.   !
    453. 

  453. 

  454.   ! --- GeometricFieldSolid ---
    455. 

  455.   !Create a field to put the geometry (default is geometry)
    456. 

  456.   CALL CMISSField_Initialise(GeometricFieldSolid,Err)
    457. 

  457.   CALL CMISSField_CreateStart(FieldGeometryUserNumberSolid,Region,GeometricFieldSolid,Err)
    458. 

  458.   CALL CMISSField_MeshDecompositionSet(GeometricFieldSolid,Decomposition,Err)
    459. 

  459.   CALL CMISSField_TypeSet(GeometricFieldSolid,CMISS_FIELD_GEOMETRIC_TYPE,Err)
    460. 

  460.   CALL CMISSField_NumberOfVariablesSet(GeometricFieldSolid,FieldGeometryNumberOfVariables,Err)
    461. 

  461.   CALL CMISSField_NumberOfComponentsSet(GeometricFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE,FieldGeometryNumberOfComponents,Err)  
    462. 

  462.   CALL CMISSField_ComponentMeshComponentSet(GeometricFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE,1,QuadraticMeshComponentNumber,Err)
    463. 

  463.   CALL CMISSField_ComponentMeshComponentSet(GeometricFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE,2,QuadraticMeshComponentNumber,Err)
    464. 

  464.   CALL CMISSField_ComponentMeshComponentSet(GeometricFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE,3,QuadraticMeshComponentNumber,Err)
    465. 

  465.   CALL CMISSField_CreateFinish(GeometricFieldSolid,Err)
    466. 

  466. 

  467.   !Update the geometric field parameters
    468. 

  468.   CALL CMISSGeneratedMesh_GeometricParametersCalculate(GeneratedMesh,GeometricFieldSolid,Err)
    469. 

  469. 

  470.   !
    471. 

  471.   !================================================================================================================================
    472. 

  472.   !
    473. 

  473. 

  474.   ! --- GeometricFieldDarcy ---
    475. 

  475.   !Create a field to put the geometry (default is geometry)
    476. 

  476.   CALL CMISSField_Initialise(GeometricFieldDarcy,Err)
    477. 

  477.   CALL CMISSField_CreateStart(FieldGeometryUserNumberDarcy,Region,GeometricFieldDarcy,Err)
    478. 

  478.   CALL CMISSField_MeshDecompositionSet(GeometricFieldDarcy,Decomposition,Err)
    479. 

  479.   CALL CMISSField_TypeSet(GeometricFieldDarcy,CMISS_FIELD_GEOMETRIC_TYPE,Err)
    480. 

  480.   CALL CMISSField_NumberOfVariablesSet(GeometricFieldDarcy,FieldGeometryNumberOfVariables,Err)
    481. 

  481.   CALL CMISSField_NumberOfComponentsSet(GeometricFieldDarcy,CMISS_FIELD_U_VARIABLE_TYPE,FieldGeometryNumberOfComponents,Err)  
    482. 

  482.   CALL CMISSField_ComponentMeshComponentSet(GeometricFieldDarcy,CMISS_FIELD_U_VARIABLE_TYPE,1, &
    483. 

  483.     & GeometricFieldDarcyMeshComponentNumber,Err)
    484. 

  484.   CALL CMISSField_ComponentMeshComponentSet(GeometricFieldDarcy,CMISS_FIELD_U_VARIABLE_TYPE,2, &
    485. 

  485.     & GeometricFieldDarcyMeshComponentNumber,Err)
    486. 

  486.   CALL CMISSField_ComponentMeshComponentSet(GeometricFieldDarcy,CMISS_FIELD_U_VARIABLE_TYPE,3, &
    487. 

  487.     & GeometricFieldDarcyMeshComponentNumber,Err)
    488. 

  488.   CALL CMISSField_CreateFinish(GeometricFieldDarcy,Err)
    489. 

  489. 

  490.   !Update the geometric field parameters
    491. 

  491.   CALL CMISSGeneratedMesh_GeometricParametersCalculate(GeneratedMesh,GeometricFieldDarcy,Err)
    492. 

  492. 

  493.   !
    494. 

  494.   !================================================================================================================================
    495. 

  495.   !
    496. 

  496. 

  497.   !Create a fibre field and attach it to the geometric field
    498. 

  498.   CALL CMISSField_Initialise(FibreFieldSolid,Err)
    499. 

  499.   CALL CMISSField_CreateStart(FieldFibreUserNumber,Region,FibreFieldSolid,Err)
    500. 

  500.   CALL CMISSField_TypeSet(FibreFieldSolid,CMISS_FIELD_FIBRE_TYPE,Err)
    501. 

  501.   CALL CMISSField_MeshDecompositionSet(FibreFieldSolid,Decomposition,Err)
    502. 

  502.   CALL CMISSField_GeometricFieldSet(FibreFieldSolid,GeometricFieldSolid,Err)
    503. 

  503.   CALL CMISSField_NumberOfVariablesSet(FibreFieldSolid,FieldFibreNumberOfVariables,Err)
    504. 

  504.   CALL CMISSField_NumberOfComponentsSet(FibreFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE,FieldFibreNumberOfComponents,Err)  
    505. 

  505.   CALL CMISSField_ComponentMeshComponentSet(FibreFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE,1,QuadraticMeshComponentNumber,Err)
    506. 

  506.   CALL CMISSField_ComponentMeshComponentSet(FibreFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE,2,QuadraticMeshComponentNumber,Err)
    507. 

  507.   CALL CMISSField_ComponentMeshComponentSet(FibreFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE,3,QuadraticMeshComponentNumber,Err)
    508. 

  508.   CALL CMISSField_CreateFinish(FibreFieldSolid,Err)
    509. 

  509. 

  510.   !Set Fibre directions (this block is parallel-untested)
    511. 

  511.   node_idx=0  
    512. 

  512.   !This is valid only for quadratic basis functions
    513. 

  513.   TOTAL_NUMBER_NODES_XI(1)=NumberGlobalXElements*2
    514. 

  514.   TOTAL_NUMBER_NODES_XI(2)=NumberGlobalYElements*2+1
    515. 

  515.   TOTAL_NUMBER_NODES_XI(3)=NumberGlobalZElements*2+1
    516. 

  516. 

  517.   XI2delta=(PI-CUTOFF_ANGLE)/(TOTAL_NUMBER_NODES_XI(2)-1)
    518. 

  518.   XI3=0
    519. 

  519.   XI3delta=(1.0)/(TOTAL_NUMBER_NODES_XI(3)-1)
    520. 

  520.   zero=0
    521. 

  521.   DO k=1, TOTAL_NUMBER_NODES_XI(3)
    522. 

  522.     !Apex nodes
    523. 

  523.     j=1
    524. 

  524.     i=1
    525. 

  525.     node_idx=node_idx+1
    526. 

  526.     CALL CMISSDecomposition_NodeDomainGet(Decomposition,node_idx,1,NodeDomain,Err)
    527. 

  527.     IF(NodeDomain==ComputationalNodeNumber) THEN
    528. 

  528.       FibreFieldAngle=(/zero,zero,zero/) 
    529. 

  529.       DO component_idx=1,FieldFibreNumberOfComponents
    530. 

  530.         CALL CMISSField_ParameterSetUpdateNode(FibreFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE,1, &
    531. 

  531.           & DerivativeUserNumber,node_idx,component_idx,FibreFieldAngle(component_idx),Err)
    532. 

  532.       ENDDO
    533. 

  533.     ENDIF
    534. 

  534.     theta=atan(FIBRE_SLOPE_CHANGE*XI3+FIBRE_SLOPE_INTERSECTION)
    535. 

  535.     DO j=2, TOTAL_NUMBER_NODES_XI(2) 
    536. 

  536.       nu=PI-XI2delta*(j-1)
    537. 

  537.       omega=PI/2+cos(2*nu)*atan(SHEET_SLOPE_BASE_ENDO)*(-2*XI3+1)
    538. 

  538.       DO i=1, TOTAL_NUMBER_NODES_XI(1)
    539. 

  539.         node_idx=node_idx+1
    540. 

  540.         CALL CMISSDecomposition_NodeDomainGet(Decomposition,node_idx,1,NodeDomain,Err)
    541. 

  541.         IF(NodeDomain==ComputationalNodeNumber) THEN
    542. 

  542.           FibreFieldAngle=(/theta,zero,omega/)
    543. 

  543.           DO component_idx=1,FieldFibreNumberOfComponents
    544. 

  544.             CALL CMISSField_ParameterSetUpdateNode(FibreFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE,1, &
    545. 

  545.               & DerivativeUserNumber, node_idx,component_idx,FibreFieldAngle(component_idx),Err)
    546. 

  546.           ENDDO
    547. 

  547.         ENDIF
    548. 

  548.       ENDDO
    549. 

  549.     ENDDO
    550. 

  550.     XI3=XI3+XI3delta
    551. 

  551.   ENDDO
    552. 

  552. 

  553.   !Create a material field and attach it to the geometric field
    554. 

  554.   CALL CMISSField_Initialise(MaterialFieldSolid,Err)
    555. 

  555.   CALL CMISSField_CreateStart(FieldMaterialUserNumber,Region,MaterialFieldSolid,Err)
    556. 

  556.   CALL CMISSField_TypeSet(MaterialFieldSolid,CMISS_FIELD_MATERIAL_TYPE,Err)
    557. 

  557.   CALL CMISSField_MeshDecompositionSet(MaterialFieldSolid,Decomposition,Err)        
    558. 

  558.   CALL CMISSField_GeometricFieldSet(MaterialFieldSolid,GeometricFieldSolid,Err)
    559. 

  559.   CALL CMISSField_NumberOfVariablesSet(MaterialFieldSolid,FieldMaterialNumberOfVariables,Err)
    560. 

  560.   CALL CMISSField_NumberOfComponentsSet(MaterialFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE,FieldMaterialNumberOfComponents,Err)  
    561. 

  561.   CALL CMISSField_ComponentInterpolationSet(MaterialFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE,1,CMISS_FIELD_CONSTANT_INTERPOLATION,Err)
    562. 

  562.   CALL CMISSField_ComponentInterpolationSet(MaterialFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE,2,CMISS_FIELD_CONSTANT_INTERPOLATION,Err)
    563. 

  563.   CALL CMISSField_ComponentInterpolationSet(MaterialFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE,3,CMISS_FIELD_CONSTANT_INTERPOLATION,Err)
    564. 

  564.   CALL CMISSField_CreateFinish(MaterialFieldSolid,Err)
    565. 

  565. 

  566.   !Set Mooney-Rivlin constants 
    567. 

  567.   CALL CMISSField_ComponentValuesInitialise(MaterialFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE,1,C1,Err)
    568. 

  568.   CALL CMISSField_ComponentValuesInitialise(MaterialFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE,2,C2,Err)
    569. 

  569.   CALL CMISSField_ComponentValuesInitialise(MaterialFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE,3,C3,Err)
    570. 

  570. 

  571.   !
    572. 

  572.   !================================================================================================================================
    573. 

  573.   !
    574. 

  574. 

  575.   !EQUATIONS SETS
    576. 

  576. 

  577.   !Create the equations set for ALE Darcy
    578. 

  578.   CALL CMISSField_Initialise(EquationsSetFieldDarcy,Err)
    579. 

  579.   CALL CMISSEquationsSet_Initialise(EquationsSetDarcy,Err)
    580. 

  580.   CALL CMISSEquationsSet_CreateStart(EquationsSetUserNumberDarcy,Region,GeometricFieldDarcy, &
    581. 

  581.     & CMISS_EQUATIONS_SET_FLUID_MECHANICS_CLASS, &
    582. 

  582.     & CMISS_EQUATIONS_SET_DARCY_EQUATION_TYPE,CMISS_EQUATIONS_SET_INCOMPRESS_ELASTICITY_DRIVEN_DARCY_SUBTYPE,&
    583. 

  583.     & EquationsSetFieldUserNumberDarcy,EquationsSetFieldDarcy,EquationsSetDarcy,Err)
    584. 

  584.   CALL CMISSEquationsSet_CreateFinish(EquationsSetDarcy,Err)
    585. 

  585. 

  586.   !Create the equations set for the solid
    587. 

  587.   CALL CMISSField_Initialise(EquationsSetFieldSolid,Err)
    588. 

  588.   CALL CMISSEquationsSet_Initialise(EquationsSetSolid,Err)
    589. 

  589.   CALL CMISSEquationsSet_CreateStart(EquationSetUserNumberSolid,Region,FibreFieldSolid,CMISS_EQUATIONS_SET_ELASTICITY_CLASS, &
    590. 

  590.     & CMISS_EQUATIONS_SET_FINITE_ELASTICITY_TYPE,CMISS_EQUATIONS_SET_INCOMPRESS_ELASTICITY_DRIVEN_DARCY_SUBTYPE, &
    591. 

  591.     & EquationsSetFieldUserNumberSolid,EquationsSetFieldSolid,EquationsSetSolid,Err)
    592. 

  592.   CALL CMISSEquationsSet_CreateFinish(EquationsSetSolid,Err)
    593. 

  593. 

  594.   !
    595. 

  595.   !================================================================================================================================
    596. 

  596.   !
    597. 

  597. 

  598.   !DEPENDENT FIELDS
    599. 

  599. 

  600.   !Create a dependent field with four variables (U, DelUDelN = solid, V, DelVDelN = Darcy) and four components
    601. 

  601.   !Solid: The U, DelUDelN variables have 4 components (3 displacement, 1 pressure)
    602. 

  602.   CALL CMISSField_Initialise(DependentField,Err)
    603. 

  603.   CALL CMISSField_CreateStart(FieldDependentUserNumber,Region,DependentField,Err)
    604. 

  604.   CALL CMISSField_TypeSet(DependentField,CMISS_FIELD_GENERAL_TYPE,Err)
    605. 

  605.   CALL CMISSField_MeshDecompositionSet(DependentField,Decomposition,Err)
    606. 

  606.   CALL CMISSField_GeometricFieldSet(DependentField,GeometricFieldSolid,Err)
    607. 

  607.   CALL CMISSField_DependentTypeSet(DependentField,CMISS_FIELD_DEPENDENT_TYPE,Err)
    608. 

  608.   CALL CMISSField_NumberOfVariablesSet(DependentField,FieldDependentNumberOfVariables,Err)
    609. 

  609. 

  610.   CALL CMISSField_VariableTypesSet(DependentField,(/CMISS_FIELD_U_VARIABLE_TYPE, &
    611. 

  611.     & CMISS_FIELD_DELUDELN_VARIABLE_TYPE,CMISS_FIELD_V_VARIABLE_TYPE,CMISS_FIELD_DELVDELN_VARIABLE_TYPE/),Err)
    612. 

  612.   CALL CMISSField_NumberOfComponentsSet(DependentField,CMISS_FIELD_U_VARIABLE_TYPE,FieldDependentSolidNumberOfComponents,Err)
    613. 

  613.   CALL CMISSField_NumberOfComponentsSet(DependentField,CMISS_FIELD_DELUDELN_VARIABLE_TYPE,FieldDependentSolidNumberOfComponents,Err)
    614. 

  614.   CALL CMISSField_NumberOfComponentsSet(DependentField,CMISS_FIELD_V_VARIABLE_TYPE,FieldDependentFluidNumberOfComponents,Err)
    615. 

  615.   CALL CMISSField_NumberOfComponentsSet(DependentField,CMISS_FIELD_DELVDELN_VARIABLE_TYPE,FieldDependentFluidNumberOfComponents,Err)
    616. 

  616. 

  617.   CALL CMISSField_ComponentMeshComponentSet(DependentField,CMISS_FIELD_U_VARIABLE_TYPE,1,QuadraticMeshComponentNumber,Err)
    618. 

  618.   CALL CMISSField_ComponentMeshComponentSet(DependentField,CMISS_FIELD_U_VARIABLE_TYPE,2,QuadraticMeshComponentNumber,Err)
    619. 

  619.   CALL CMISSField_ComponentMeshComponentSet(DependentField,CMISS_FIELD_U_VARIABLE_TYPE,3,QuadraticMeshComponentNumber,Err)
    620. 

  620.   CALL CMISSField_ComponentMeshComponentSet(DependentField,CMISS_FIELD_U_VARIABLE_TYPE,4,LinearMeshComponentNumber,Err)
    621. 

  621.   CALL CMISSField_ComponentMeshComponentSet(DependentField,CMISS_FIELD_DELUDELN_VARIABLE_TYPE,1,QuadraticMeshComponentNumber,Err)
    622. 

  622.   CALL CMISSField_ComponentMeshComponentSet(DependentField,CMISS_FIELD_DELUDELN_VARIABLE_TYPE,2,QuadraticMeshComponentNumber,Err)
    623. 

  623.   CALL CMISSField_ComponentMeshComponentSet(DependentField,CMISS_FIELD_DELUDELN_VARIABLE_TYPE,3,QuadraticMeshComponentNumber,Err)
    624. 

  624.   CALL CMISSField_ComponentMeshComponentSet(DependentField,CMISS_FIELD_DELUDELN_VARIABLE_TYPE,4,LinearMeshComponentNumber,Err)
    625. 

  625. 

  626.   !Darcy: The V, DelVDelN variables have 4 components (3 velocities, 1 mass increase)
    627. 

  627.   CALL CMISSField_ComponentMeshComponentSet(DependentField,CMISS_FIELD_V_VARIABLE_TYPE,1,DarcyVelMeshComponentNumber,Err)
    628. 

  628.   CALL CMISSField_ComponentMeshComponentSet(DependentField,CMISS_FIELD_V_VARIABLE_TYPE,2,DarcyVelMeshComponentNumber,Err)
    629. 

  629.   CALL CMISSField_ComponentMeshComponentSet(DependentField,CMISS_FIELD_V_VARIABLE_TYPE,3,DarcyVelMeshComponentNumber,Err)
    630. 

  630.   CALL CMISSField_ComponentMeshComponentSet(DependentField,CMISS_FIELD_V_VARIABLE_TYPE,4,DarcyMassIncreaseMeshComponentNumber,Err)
    631. 

  631.   CALL CMISSField_ComponentMeshComponentSet(DependentField,CMISS_FIELD_DELVDELN_VARIABLE_TYPE,1,DarcyVelMeshComponentNumber,Err)
    632. 

  632.   CALL CMISSField_ComponentMeshComponentSet(DependentField,CMISS_FIELD_DELVDELN_VARIABLE_TYPE,2,DarcyVelMeshComponentNumber,Err)
    633. 

  633.   CALL CMISSField_ComponentMeshComponentSet(DependentField,CMISS_FIELD_DELVDELN_VARIABLE_TYPE,3,DarcyVelMeshComponentNumber,Err)
    634. 

  634.   CALL CMISSField_ComponentMeshComponentSet(DependentField,CMISS_FIELD_DELVDELN_VARIABLE_TYPE,4, &
    635. 

  635.     & DarcyMassIncreaseMeshComponentNumber,Err)
    636. 

  636. 

  637.   CALL CMISSField_ScalingTypeSet(DependentField,CMISS_FIELD_UNIT_SCALING,Err)
    638. 

  638. 

  639.   CALL CMISSField_CreateFinish(DependentField,Err)
    640. 

  640. 

  641.   !
    642. 

  642.   !================================================================================================================================
    643. 

  643.   !
    644. 

  644. 

  645.   CALL CMISSEquationsSet_DependentCreateStart(EquationsSetSolid,FieldDependentUserNumber,DependentField,Err)
    646. 

  646.   CALL CMISSEquationsSet_DependentCreateFinish(EquationsSetSolid,Err)
    647. 

  647. 

  648.   CALL CMISSEquationsSet_MaterialsCreateStart(EquationsSetSolid,FieldMaterialUserNumber,MaterialFieldSolid,Err)  
    649. 

  649.   CALL CMISSEquationsSet_MaterialsCreateFinish(EquationsSetSolid,Err)
    650. 

  650. 

  651.   !
    652. 

  652.   !================================================================================================================================
    653. 

  653.   !
    654. 

  654. 

  655.   CALL CMISSEquationsSet_DependentCreateStart(EquationsSetDarcy,FieldDependentUserNumber,DependentField,Err)
    656. 

  656.   CALL CMISSEquationsSet_DependentCreateFinish(EquationsSetDarcy,Err)
    657. 

  657. 

  658.   DO COMPONENT_NUMBER=1,FieldDependentFluidNumberOfComponents
    659. 

  659.     CALL CMISSField_ComponentValuesInitialise(DependentField,CMISS_FIELD_V_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE, &
    660. 

  660.       & COMPONENT_NUMBER,INITIAL_FIELD_DARCY(COMPONENT_NUMBER),Err)
    661. 

  661.   ENDDO
    662. 

  662. 

  663.   !
    664. 

  664.   !================================================================================================================================
    665. 

  665.   !
    666. 

  666. 

  667.   !INDEPENDENT FIELD Darcy for storing BC flags
    668. 

  668. 

  669.   CALL CMISSField_Initialise(IndependentFieldDarcy,Err)
    670. 

  670.   CALL CMISSEquationsSet_IndependentCreateStart(EquationsSetDarcy,IndependentFieldDarcyUserNumber, &
    671. 

  671.     & IndependentFieldDarcy,Err)
    672. 

  672. 

  673.   CALL CMISSField_ComponentMeshComponentSet(IndependentFieldDarcy,CMISS_FIELD_U_VARIABLE_TYPE,1,DarcyVelMeshComponentNumber,Err)
    674. 

  674.   CALL CMISSField_ComponentMeshComponentSet(IndependentFieldDarcy,CMISS_FIELD_U_VARIABLE_TYPE,2,DarcyVelMeshComponentNumber,Err)
    675. 

  675.   CALL CMISSField_ComponentMeshComponentSet(IndependentFieldDarcy,CMISS_FIELD_U_VARIABLE_TYPE,3,DarcyVelMeshComponentNumber,Err)
    676. 

  676. !   CALL CMISSField_ComponentMeshComponentSet(IndependentFieldDarcy,CMISS_FIELD_U_VARIABLE_TYPE,4,DarcyMassIncreaseMeshComponentNumber,Err)
    677. 

  677. 

  678.   CALL CMISSEquationsSet_IndependentCreateFinish(EquationsSetDarcy,Err)
    679. 

  679. 

  680.   CALL CMISSField_ComponentValuesInitialise(IndependentFieldDarcy,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE,1, &
    681. 

  681.     & 0.0_CMISSDP,Err)
    682. 

  682.   CALL CMISSField_ComponentValuesInitialise(IndependentFieldDarcy,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE,2, &
    683. 

  683.     & 0.0_CMISSDP,Err)
    684. 

  684.   CALL CMISSField_ComponentValuesInitialise(IndependentFieldDarcy,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE,3, &
    685. 

  685.     & 0.0_CMISSDP,Err)
    686. 

  686. 

  687.   !
    688. 

  688.   !================================================================================================================================
    689. 

  689.   !
    690. 

  690. 

  691.   !Create the equations set materials field variables for ALE Darcy
    692. 

  692.   CALL CMISSField_Initialise(MaterialsFieldDarcy,Err)
    693. 

  693.   CALL CMISSEquationsSet_MaterialsCreateStart(EquationsSetDarcy,MaterialsFieldUserNumberDarcy, &
    694. 

  694.     & MaterialsFieldDarcy,Err)
    695. 

  695.   CALL CMISSEquationsSet_MaterialsCreateFinish(EquationsSetDarcy,Err)
    696. 

  696.   CALL CMISSField_ComponentValuesInitialise(MaterialsFieldDarcy,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE, &
    697. 

  697.     & 1,POROSITY_PARAM_DARCY,Err)
    698. 

  698.   CALL CMISSField_ComponentValuesInitialise(MaterialsFieldDarcy,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE, &
    699. 

  699.     & 2,PERM_OVER_VIS_PARAM_DARCY,Err)
    700. 

  700. 

  701.   CALL CMISSField_ComponentValuesInitialise(MaterialsFieldDarcy,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE, &
    702. 

  702.     & 3,0.0_CMISSDP,Err)
    703. 

  703.   CALL CMISSField_ComponentValuesInitialise(MaterialsFieldDarcy,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE, &
    704. 

  704.     & 4,0.0_CMISSDP,Err)
    705. 

  705.   CALL CMISSField_ComponentValuesInitialise(MaterialsFieldDarcy,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE, &
    706. 

  706.     & 5,PERM_OVER_VIS_PARAM_DARCY,Err)
    707. 

  707.   CALL CMISSField_ComponentValuesInitialise(MaterialsFieldDarcy,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE, &
    708. 

  708.     & 6,0.0_CMISSDP,Err)
    709. 

  709.   CALL CMISSField_ComponentValuesInitialise(MaterialsFieldDarcy,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE, &
    710. 

  710.     & 7,PERM_OVER_VIS_PARAM_DARCY,Err)
    711. 

  711. 

  712.   !
    713. 

  713.   !================================================================================================================================
    714. 

  714.   !
    715. 

  715. 

  716.   !Source field
    717. 

  717.   CALL CMISSField_Initialise(SourceFieldDarcy,Err)
    718. 

  718.   CALL CMISSEquationsSet_SourceCreateStart(EquationsSetDarcy,SourceFieldDarcyUserNumber,SourceFieldDarcy,Err)
    719. 

  719.   CALL CMISSEquationsSet_SourceCreateFinish(EquationsSetDarcy,Err)
    720. 

  720. 

  721. !   ELEMENT_NUMBER = 5
    722. 

  722. !   COMPONENT_NUMBER = 4
    723. 

  723. !   VALUE = 4.2_CMISSDP
    724. 

  724. ! !   CALL CMISSField_ParameterSetUpdateElement(RegionUserNumber,SourceFieldDarcyUserNumber,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE, &
    725. 

  725. ! !     & ELEMENT_NUMBER,COMPONENT_NUMBER,VALUE,Err)
    726. 

  726. ! 
    727. 

  727. !   NUMBER_USER_ELEMENT_NODES = 27  !hardcoding is bad - but how to access the number of element nodes ?
    728. 

  728. !                                   !- there is no CMISS library call available for this
    729. 

  729. !                                   !- traversing the structure of 'CMISSMeshElementsType' does not work either,
    730. 

  730. !                                   !  since certain members are private
    731. 

  731. ! 
    732. 

  732. !   allocate( ElementUserNodes(NUMBER_USER_ELEMENT_NODES) )
    733. 

  733. ! 
    734. 

  734. !   CALL CMISSMeshElements_NodesGet(RegionUserNumber,MeshUserNumber,QuadraticMeshComponentNumber,ELEMENT_NUMBER, &
    735. 

  735. !     & ElementUserNodes,Err)
    736. 

  736. ! 
    737. 

  737. !   DO NN=1,NUMBER_USER_ELEMENT_NODES
    738. 

  738. !     NODE_NUMBER = ElementUserNodes(NN)
    739. 

  739. !     CALL CMISSField_ParameterSetUpdateNode(SourceFieldDarcy,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE, &
    740. 

  740. !       & 1,NODE_NUMBER,COMPONENT_NUMBER,VALUE,Err)
    741. 

  741. !   ENDDO
    742. 

  742. 

  743.   !
    744. 

  744.   !================================================================================================================================
    745. 

  745.   !
    746. 

  746. 

  747.   !EQUATIONS SET EQUATIONS
    748. 

  748. 

  749.   !Darcy
    750. 

  750.   CALL CMISSEquations_Initialise(EquationsDarcy,Err)
    751. 

  751.   CALL CMISSEquationsSet_EquationsCreateStart(EquationsSetDarcy,EquationsDarcy,Err)
    752. 

  752.   CALL CMISSEquations_SparsityTypeSet(EquationsDarcy,CMISS_EQUATIONS_SPARSE_MATRICES,Err)
    753. 

  753.   CALL CMISSEquations_OutputTypeSet(EquationsDarcy,EQUATIONS_DARCY_OUTPUT,Err)
    754. 

  754.   CALL CMISSEquationsSet_EquationsCreateFinish(EquationsSetDarcy,Err)
    755. 

  755. 

  756.   !Solid
    757. 

  757.   CALL CMISSEquations_Initialise(Equations,Err)
    758. 

  758.   CALL CMISSEquationsSet_EquationsCreateStart(EquationsSetSolid,Equations,Err)
    759. 

  759.   CALL CMISSEquations_SparsityTypeSet(Equations,CMISS_EQUATIONS_SPARSE_MATRICES,Err)
    760. 

  760.   CALL CMISSEquations_OutputTypeSet(Equations,CMISS_EQUATIONS_NO_OUTPUT,Err)
    761. 

  761.   CALL CMISSEquationsSet_EquationsCreateFinish(EquationsSetSolid,Err)
    762. 

  762. 

  763.   !
    764. 

  764.   !================================================================================================================================
    765. 

  765.   !
    766. 

  766. 

  767.   !Initialise dependent field from undeformed geometry and displacement bcs and set hydrostatic pressure
    768. 

  768.   CALL CMISSField_ParametersToFieldParametersComponentCopy(GeometricFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE, &
    769. 

  769.     & CMISS_FIELD_VALUES_SET_TYPE, &
    770. 

  770.     & 1,DependentField,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE,1,Err)
    771. 

  771.   CALL CMISSField_ParametersToFieldParametersComponentCopy(GeometricFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE, &
    772. 

  772.     & CMISS_FIELD_VALUES_SET_TYPE, &
    773. 

  773.     & 2,DependentField,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE,2,Err)
    774. 

  774.   CALL CMISSField_ParametersToFieldParametersComponentCopy(GeometricFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE, &
    775. 

  775.     & CMISS_FIELD_VALUES_SET_TYPE, &
    776. 

  776.     & 3,DependentField,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE,3,Err)
    777. 

  777. !   CALL CMISSField_ComponentValuesInitialise(DependentField,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE,4,-14.0_CMISSDP,Err)
    778. 

  778.   CALL CMISSField_ComponentValuesInitialise(DependentField,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE,4,0.0_CMISSDP, &
    779. 

  779.     & Err)
    780. 

  780. 

  781.   !
    782. 

  782.   !================================================================================================================================
    783. 

  783.   !
    784. 

  784. 

  785.   !Define the problem
    786. 

  786.   CALL CMISSProblem_Initialise(Problem,Err)
    787. 

  787.   CALL CMISSProblem_CreateStart(ProblemUserNumber,Problem,Err)
    788. 

  788.   CALL CMISSProblem_SpecificationSet(Problem,CMISS_PROBLEM_MULTI_PHYSICS_CLASS,CMISS_PROBLEM_FINITE_ELASTICITY_DARCY_TYPE, &
    789. 

  789.     & CMISS_PROBLEM_QUASISTATIC_ELASTICITY_TRANSIENT_DARCY_SUBTYPE,Err)
    790. 

  790.   CALL CMISSProblem_CreateFinish(Problem,Err)
    791. 

  791. 

  792.   !
    793. 

  793.   !================================================================================================================================
    794. 

  794.   !
    795. 

  795. 

  796.   !Create the problem control loop
    797. 

  797.   CALL CMISSProblem_ControlLoopCreateStart(Problem,Err)
    798. 

  798.   CALL CMISSControlLoop_Initialise(ControlLoop,Err)
    799. 

  799.   CALL CMISSProblem_ControlLoopGet(Problem,CMISS_CONTROL_LOOP_NODE,ControlLoop,Err)
    800. 

  800. !   CALL CMISSControlLoop_MaximumIterationsSet(ControlLoop,1,Err)  ! this one sets the increment loop counter
    801. 

  801.   CALL CMISSControlLoop_TimesSet(ControlLoop,DYNAMIC_SOLVER_DARCY_START_TIME,DYNAMIC_SOLVER_DARCY_STOP_TIME, &
    802. 

  802.     & DYNAMIC_SOLVER_DARCY_TIME_INCREMENT,Err)
    803. 

  803.   CALL CMISSControlLoop_TimeOutputSet(ControlLoop,DYNAMIC_SOLVER_DARCY_OUTPUT_FREQUENCY,Err)
    804. 

  804. !   CALL CMISSControlLoop_OutputTypeSet(ControlLoop,CMISS_CONTROL_LOOP_PROGRESS_OUTPUT,Err)
    805. 

  805.   CALL CMISSProblem_ControlLoopCreateFinish(Problem,Err)
    806. 

  806. 

  807.   !
    808. 

  808.   !================================================================================================================================
    809. 

  809.   !
    810. 

  810. 

  811.   !Create the problem solvers
    812. 

  812.   CALL CMISSSolver_Initialise(SolverSolid,Err)
    813. 

  813.   CALL CMISSSolver_Initialise(LinearSolverSolid,Err)
    814. 

  814.   CALL CMISSSolver_Initialise(DynamicSolverDarcy,Err)
    815. 

  815.   CALL CMISSSolver_Initialise(LinearSolverDarcy,Err)
    816. 

  816. 

  817.   CALL CMISSProblem_SolversCreateStart(Problem,Err)
    818. 

  818. 

  819.   ! Solid
    820. 

  820.   CALL CMISSProblem_SolverGet(Problem,(/ControlLoopSubiterationNumber,ControlLoopSolidNumber,CMISS_CONTROL_LOOP_NODE/), &
    821. 

  821.     & SolverSolidIndex,SolverSolid,Err)
    822. 

  822.   CALL CMISSSolver_OutputTypeSet(SolverSolid,CMISS_SOLVER_PROGRESS_OUTPUT,Err)
    823. 

  823. !   CALL CMISSSolver_NewtonJacobianCalculationTypeSet(SolverSolid,CMISS_SOLVER_NEWTON_JACOBIAN_FD_CALCULATED,Err)
    824. 

  824.   CALL CMISSSolver_NewtonJacobianCalculationTypeSet(SolverSolid,CMISS_SOLVER_NEWTON_JACOBIAN_EQUATIONS_CALCULATED,Err)
    825. 

  825. 

  826. !   CALL CMISSSolverNonLinearTypeSet(SolverSolid,CMISS_SOLVER_NONLINEAR_NEWTON,Err)
    827. 

  827. !   CALL CMISSSolver_LibraryTypeSet(SolverSolid,CMISS_SOLVER_PETSC_LIBRARY,Err)
    828. 

  828. 

  829.   CALL CMISSSolver_NewtonAbsoluteToleranceSet(SolverSolid,ABSOLUTE_TOLERANCE,Err)
    830. 

  830.   CALL CMISSSolver_NewtonRelativeToleranceSet(SolverSolid,RELATIVE_TOLERANCE,Err)
    831. 

  831.   CALL CMISSSolver_NewtonMaximumIterationsSet(SolverSolid,MAXIMUM_ITERATIONS,Err)
    832. 

  832. 

  833.   CALL CMISSSolver_NewtonLinearSolverGet(SolverSolid,LinearSolverSolid,Err)
    834. 

  834.   CALL CMISSSolver_LinearTypeSet(LinearSolverSolid,CMISS_SOLVER_LINEAR_DIRECT_SOLVE_TYPE,Err)
    835. 

  835. 

  836.   !Darcy
    837. 

  837.   CALL CMISSProblem_SolverGet(Problem,(/ControlLoopSubiterationNumber,ControlLoopFluidNumber,CMISS_CONTROL_LOOP_NODE/), &
    838. 

  838.     & SolverDarcyIndex,DynamicSolverDarcy,Err)
    839. 

  839.   CALL CMISSSolver_OutputTypeSet(DynamicSolverDarcy,DYNAMIC_SOLVER_DARCY_OUTPUT_TYPE,Err)
    840. 

  840.   CALL CMISSSolver_DynamicThetaSet(DynamicSolverDarcy,DYNAMIC_SOLVER_DARCY_THETA,Err)
    841. 

  841. !   CALL CMISSSolverDynamicDynamicSet(DynamicSolverDarcy,.TRUE.,Err)
    842. 

  842.   CALL CMISSSolver_DynamicLinearSolverGet(DynamicSolverDarcy,LinearSolverDarcy,Err)
    843. 

  843.   IF(LINEAR_SOLVER_DARCY_DIRECT_FLAG) THEN
    844. 

  844.     CALL CMISSSolver_LinearTypeSet(LinearSolverDarcy,CMISS_SOLVER_LINEAR_DIRECT_SOLVE_TYPE,Err)
    845. 

  845.     CALL CMISSSolver_LibraryTypeSet(LinearSolverDarcy,CMISS_SOLVER_MUMPS_LIBRARY,Err)
    846. 

  846.   ELSE
    847. 

  847.     CALL CMISSSolver_LinearTypeSet(LinearSolverDarcy,CMISS_SOLVER_LINEAR_ITERATIVE_SOLVE_TYPE,Err)
    848. 

  848.     CALL CMISSSolver_LinearIterativeMaximumIterationsSet(LinearSolverDarcy,MAXIMUM_ITERATIONS,Err)
    849. 

  849.     CALL CMISSSolver_LinearIterativeDivergenceToleranceSet(LinearSolverDarcy,DIVERGENCE_TOLERANCE,Err)
    850. 

  850.     CALL CMISSSolver_LinearIterativeRelativeToleranceSet(LinearSolverDarcy,RELATIVE_TOLERANCE,Err)
    851. 

  851.     CALL CMISSSolver_LinearIterativeAbsoluteToleranceSet(LinearSolverDarcy,ABSOLUTE_TOLERANCE,Err)
    852. 

  852.     CALL CMISSSolver_LinearIterativeGMRESRestartSet(LinearSolverDarcy,RESTART_VALUE,Err)
    853. 

  853.   ENDIF
    854. 

  854. 

  855. CALL CMISSProblem_SolversCreateFinish(Problem,Err)
    856. 

  856. 

  857. 

  858.   !
    859. 

  859.   !================================================================================================================================
    860. 

  860.   !
    861. 

  861. 

  862.   !Create the problem solver equations
    863. 

  863.   CALL CMISSSolver_Initialise(SolverSolid,Err)
    864. 

  864.   CALL CMISSSolver_Initialise(LinearSolverDarcy,Err)
    865. 

  865. 

  866.   CALL CMISSSolverEquations_Initialise(SolverEquationsSolid,Err)
    867. 

  867.   CALL CMISSSolverEquations_Initialise(SolverEquationsDarcy,Err)
    868. 

  868. 

  869.   CALL CMISSProblem_SolverEquationsCreateStart(Problem,Err)
    870. 

  870.   !
    871. 

  871.   !Get the finite elasticity solver equations
    872. 

  872.   CALL CMISSProblem_SolverGet(Problem,(/ControlLoopSubiterationNumber,ControlLoopSolidNumber,CMISS_CONTROL_LOOP_NODE/), &
    873. 

  873.     & SolverSolidIndex,SolverSolid,Err)
    874. 

  874.   CALL CMISSSolver_SolverEquationsGet(SolverSolid,SolverEquationsSolid,Err)
    875. 

  875.   CALL CMISSSolverEquations_SparsityTypeSet(SolverEquationsSolid,CMISS_SOLVER_SPARSE_MATRICES,Err)
    876. 

  876.   CALL CMISSSolverEquations_EquationsSetAdd(SolverEquationsSolid,EquationsSetSolid,EquationsSetIndex,Err)
    877. 

  877.   !
    878. 

  878.   !Get the Darcy solver equations
    879. 

  879.   CALL CMISSProblem_SolverGet(Problem,(/ControlLoopSubiterationNumber,ControlLoopFluidNumber,CMISS_CONTROL_LOOP_NODE/), &
    880. 

  880.     & SolverDarcyIndex,LinearSolverDarcy,Err)
    881. 

  881.   CALL CMISSSolver_SolverEquationsGet(LinearSolverDarcy,SolverEquationsDarcy,Err)
    882. 

  882.   CALL CMISSSolverEquations_SparsityTypeSet(SolverEquationsDarcy,CMISS_SOLVER_SPARSE_MATRICES,Err)
    883. 

  883.   CALL CMISSSolverEquations_EquationsSetAdd(SolverEquationsDarcy,EquationsSetDarcy,EquationsSetIndex,Err)
    884. 

  884.   !
    885. 

  885.   CALL CMISSProblem_SolverEquationsCreateFinish(Problem,Err)
    886. 

  886. 

  887.   !
    888. 

  888.   !================================================================================================================================
    889. 

  889.   !
    890. 

  890. 

  891.   !Prescribe boundary conditions (absolute nodal parameters)
    892. 

  892.   CALL CMISSBoundaryConditions_Initialise(BoundaryConditions,Err)
    893. 

  893.   CALL CMISSSolverEquations_BoundaryConditionsCreateStart(SolverEquationsSolid,BoundaryConditions,Err)
    894. 

  894. 

  895.   !Grab the list of nodes on inner, outer and top surfaces
    896. 

  896.   CALL CMISSGeneratedMesh_SurfaceGet(GeneratedMesh,CMISS_GENERATED_MESH_ELLIPSOID_TOP_SURFACE,TopSurfaceNodes,TopNormalXi,Err)
    897. 

  897.   CALL CMISSGeneratedMesh_SurfaceGet(GeneratedMesh,CMISS_GENERATED_MESH_ELLIPSOID_INNER_SURFACE,InnerSurfaceNodes,InnerNormalXi,Err)
    898. 

  898.   CALL CMISSGeneratedMesh_SurfaceGet(GeneratedMesh,CMISS_GENERATED_MESH_ELLIPSOID_OUTER_SURFACE,OuterSurfaceNodes,OuterNormalXi,Err)
    899. 

  899. 

  900.   write(*,*)'TopSurfaceNodes = ',TopSurfaceNodes
    901. 

  901. 

  902.   ! ASSIGN BOUNDARY CONDITIONS
    903. 

  903.   !Fix base of the ellipsoid in z direction
    904. 

  904.   DO NN=1,SIZE(TopSurfaceNodes,1)
    905. 

  905.     NODE=TopSurfaceNodes(NN)
    906. 

  906.     CALL CMISSDecomposition_NodeDomainGet(Decomposition,NODE,1,NodeDomain,Err)
    907. 

  907.     IF(NodeDomain==ComputationalNodeNumber) THEN
    908. 

  908.       CALL CMISSField_ParameterSetGetNode(GeometricFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE,1,1,NODE,3, &
    909. 

  909.         & ZCoord,Err)
    910. 

  910.       CALL CMISSBoundaryConditions_SetNode(BoundaryConditions,DependentField,CMISS_FIELD_U_VARIABLE_TYPE,1,1,NODE,3, &
    911. 

  911.         & CMISS_BOUNDARY_CONDITION_FIXED,ZCoord,Err)
    912. 

  912.     ENDIF
    913. 

  913.   ENDDO
    914. 

  914. 

  915.   !Apply inner surface pressure
    916. 

  916.   !NOTE: Surface pressure goes into pressure_values_set_type of the DELUDELN type
    917. 

  917.   DO NN=1,SIZE(InnerSurfaceNodes,1)
    918. 

  918.     NODE=InnerSurfaceNodes(NN)
    919. 

  919.     CALL CMISSDecomposition_NodeDomainGet(Decomposition,NODE,1,NodeDomain,Err)
    920. 

  920.     IF(NodeDomain==ComputationalNodeNumber) THEN
    921. 

  921.       CALL CMISSBoundaryConditions_SetNode(BoundaryConditions,DependentField,CMISS_FIELD_DELUDELN_VARIABLE_TYPE,1,1,NODE, &
    922. 

  922.         & ABS(InnerNormalXi),CMISS_BOUNDARY_CONDITION_PRESSURE,INNER_PRESSURE,Err)
    923. 

  923.     ENDIF
    924. 

  924.   ENDDO
    925. 

  925. 

  926.   !Apply outer surface pressure
    927. 

  927.   DO NN=1,SIZE(OuterSurfaceNodes,1)
    928. 

  928.     NODE=OuterSurfaceNodes(NN)
    929. 

  929.     CALL CMISSDecomposition_NodeDomainGet(Decomposition,NODE,1,NodeDomain,Err)
    930. 

  930.     IF(NodeDomain==ComputationalNodeNumber) THEN
    931. 

  931.       CALL CMISSBoundaryConditions_SetNode(BoundaryConditions,DependentField,CMISS_FIELD_DELUDELN_VARIABLE_TYPE,1,1,NODE, &
    932. 

  932.         & ABS(OuterNormalXi),CMISS_BOUNDARY_CONDITION_PRESSURE,OUTER_PRESSURE,Err)
    933. 

  933.     ENDIF
    934. 

  934.   ENDDO
    935. 

  935. 

  936.   !Fix more nodes at the base to stop free body motion
    937. 

  937.   X_FIXED=.FALSE.
    938. 

  938.   Y_FIXED=.FALSE.
    939. 

  939.   DO NN=1,SIZE(TopSurfaceNodes,1)
    940. 

  940.     NODE=TopSurfaceNodes(NN)
    941. 

  941.     CALL CMISSDecomposition_NodeDomainGet(Decomposition,NODE,1,NodeDomain,Err)
    942. 

  942.     IF(NodeDomain==ComputationalNodeNumber) THEN
    943. 

  943.       CALL CMISSField_ParameterSetGetNode(GeometricFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE,1,1,NODE,1, &
    944. 

  944.         & XCoord,Err)
    945. 

  945.       CALL CMISSField_ParameterSetGetNode(GeometricFieldSolid,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE,1,1,NODE,2, &
    946. 

  946.         & YCoord,Err)
    947. 

  947.       IF(ABS(XCoord)<1.0E-6_CMISSDP) THEN
    948. 

  948.         CALL CMISSBoundaryConditions_SetNode(BoundaryConditions,DependentField,CMISS_FIELD_U_VARIABLE_TYPE,1,1,NODE,1, &
    949. 

  949.           & CMISS_BOUNDARY_CONDITION_FIXED,XCoord,Err)
    950. 

  950.         WRITE(*,*) "FIXING NODE",NODE,"IN X DIRECTION"
    951. 

  951.         X_FIXED=.TRUE.
    952. 

  952.       ENDIF
    953. 

  953.       IF(ABS(YCoord)<1.0E-6_CMISSDP) THEN
    954. 

  954.         CALL CMISSBoundaryConditions_SetNode(BoundaryConditions,DependentField,CMISS_FIELD_U_VARIABLE_TYPE,1,1,NODE,2, &
    955. 

  955.           & CMISS_BOUNDARY_CONDITION_FIXED,YCoord,Err)
    956. 

  956.         WRITE(*,*) "FIXING NODE",NODE,"IN Y DIRECTION"
    957. 

  957.         Y_FIXED=.TRUE.
    958. 

  958.     ENDIF
    959. 

  959.     ENDIF
    960. 

  960.   ENDDO
    961. 

  961.   CALL MPI_REDUCE(X_FIXED,X_OKAY,1,MPI_LOGICAL,MPI_LOR,0,MPI_COMM_WORLD,MPI_IERROR)
    962. 

  962.   CALL MPI_REDUCE(Y_FIXED,Y_OKAY,1,MPI_LOGICAL,MPI_LOR,0,MPI_COMM_WORLD,MPI_IERROR)
    963. 

  963.   IF(ComputationalNodeNumber==0) THEN
    964. 

  964.     IF(.NOT.(X_OKAY.AND.Y_OKAY)) THEN
    965. 

  965.       WRITE(*,*) "Free body motion could not be prevented!"
    966. 

  966.       CALL CMISSFinalise(Err)
    967. 

  967.     STOP
    968. 

  968.     ENDIF
    969. 

  969.   ENDIF
    970. 

  970. 

  971.   CALL CMISSSolverEquations_BoundaryConditionsCreateFinish(SolverEquationsSolid,Err)
    972. 

  972. 

  973.   !
    974. 

  974.   !================================================================================================================================
    975. 

  975.   !
    976. 

  976. 

  977.   !BCs Darcy
    978. 

  978.   CALL CMISSBoundaryConditions_Initialise(BoundaryConditionsDarcy,Err)
    979. 

  979.   CALL CMISSSolverEquations_BoundaryConditionsCreateStart(SolverEquationsDarcy,BoundaryConditionsDarcy,Err)
    980. 

  980. 

  981.     !In 'generated_mesh_routines.f90/GENERATED_MESH_ELLIPSOID_SURFACE_GET' there is a bug:
    982. 

  982.     !  BASIS=>ELLIPSOID_MESH%BASES(MESH_COMPONENT)%PTR does not account for the fact that:
    983. 

  983.     !  in 'generated_mesh_routines.f90/GENERATED_MESH_ELLIPSOID_CREATE_FINISH' the following is done:
    984. 

  984.     !  CALL MESH_NUMBER_OF_COMPONENTS_SET(GENERATED_MESH%MESH,SIZE(ELLIPSOID_MESH%BASES)/2,ERR,ERROR,*999)
    985. 

  985.     !Temporary work around, until bug fix:
    986. 

  986. 

  987.     !MeshComponentNumber_dummy = DarcyVelMeshComponentNumber
    988. 

  988.     MeshComponentNumber_dummy = 3 
    989. 

  989. 

  990.     !  I N N E R   S U R F A C E
    991. 

  991.     CALL CMISSGeneratedMesh_SurfaceGet(GeneratedMesh,MeshComponentNumber_dummy,CMISS_GENERATED_MESH_ELLIPSOID_INNER_SURFACE, &
    992. 

  992.       & InnerSurfaceNodesDarcyVel,InnerNormalXi,Err)
    993. 

  993. 

  994.     write(*,*)'InnerSurfaceNodesDarcyVel = ',InnerSurfaceNodesDarcyVel
    995. 

  995.     write(*,*)'InnerNormalXi = ',InnerNormalXi
    996. 

  996. 

  997.     !Set all inner surface nodes impermeable
    998. 

  998.     !MIND: CMISS_FIELD_DELVDELN_VARIABLE_TYPE -> RHS invoked in DARCY_EQUATION_FINITE_ELEMENT_CALCULATE
    999. 

  999.     !      CMISS_BOUNDARY_CONDITION_IMPERMEABLE_WALL
    1000. 

  1000.     DO NN=1,SIZE(InnerSurfaceNodesDarcyVel,1)
    1001. 

  1001. !       VALUE = 0.0_CMISSDP
    1002. 

  1002. !       COMPONENT_NUMBER = 1
    1003. 

  1003. !       CALL CMISSBoundaryConditions_SetNode(BoundaryConditionsDarcy,DependentField,CMISS_FIELD_DELVDELN_VARIABLE_TYPE,1,InnerSurfaceNodesDarcyVel(NN), &
    1004. 

  1004. !         & COMPONENT_NUMBER,CMISS_BOUNDARY_CONDITION_IMPERMEABLE_WALL,VALUE,Err)
    1005. 

  1005. !       IF(Err/=0) WRITE(*,*) "ERROR WHILE ASSIGNING INNER DARCY BC TO NODE", InnerSurfaceNodesDarcyVel(NN)
    1006. 

  1006. ! 
    1007. 

  1007. !       VALUE = 0.0_CMISSDP
    1008. 

  1008. !       COMPONENT_NUMBER = 2PLACE_EQUATION_EQUATIONS_SET_FLUID_PRESSURE_SETUP
    1009. 

  1009. !       CALL CMISSBoundaryConditions_SetNode(BoundaryConditionsDarcy,DependentField,CMISS_FIELD_DELVDELN_VARIABLE_TYPE,1,InnerSurfaceNodesDarcyVel(NN), &
    1010. 

  1010. !         & COMPONENT_NUMBER,CMISS_BOUNDARY_CONDITION_IMPERMEABLE_WALL,VALUE,Err)
    1011. 

  1011. !       IF(Err/=0) WRITE(*,*) "ERROR WHILE ASSIGNING INNER DARCY BC TO NODE", InnerSurfaceNodesDarcyVel(NN)
    1012. 

  1012. ! 
    1013. 

  1013. !       VALUE = 0.0_CMISSDP
    1014. 

  1014. !       COMPONENT_NUMBER = 3
    1015. 

  1015. !       CALL CMISSBoundaryConditions_SetNode(BoundaryConditionsDarcy,DependentField,CMISS_FIELD_DELVDELN_VARIABLE_TYPE,1,InnerSurfaceNodesDarcyVel(NN), &
    1016. 

  1016. !         & COMPONENT_NUMBER,CMISS_BOUNDARY_CONDITION_IMPERMEABLE_WALL,VALUE,Err)
    1017. 

  1017. !       IF(Err/=0) WRITE(*,*) "ERROR WHILE ASSIGNING INNER DARCY BC TO NODE", InnerSurfaceNodesDarcyVel(NN)
    1018. 

  1018. 

  1019. !       VALUE = 1.0_CMISSDP
    1020. 

  1020. !       COMPONENT_NUMBER = ABS(InnerNormalXi)
    1021. 

  1021. !       CALL CMISSBoundaryConditions_SetNode(BoundaryConditionsDarcy,DependentField,CMISS_FIELD_DELVDELN_VARIABLE_TYPE,1,InnerSurfaceNodesDarcyVel(NN), &
    1022. 

  1022. !         & COMPONENT_NUMBER,CMISS_BOUNDARY_CONDITION_IMPERMEABLE_WALL,VALUE,Err)
    1023. 

  1023. !       IF(Err/=0) WRITE(*,*) "ERROR WHILE ASSIGNING INNER DARCY BC TO NODE", InnerSurfaceNodesDarcyVel(NN)
    1024. 

  1024. 

  1025.       NODE_NUMBER = InnerSurfaceNodesDarcyVel(NN)
    1026. 

  1026.       COMPONENT_NUMBER = ABS(InnerNormalXi)
    1027. 

  1027.       VALUE = 1.0_CMISSDP
    1028. 

  1028.       CALL CMISSField_ParameterSetUpdateNode(IndependentFieldDarcy,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE,1, &
    1029. 

  1029.         & CMISS_NO_GLOBAL_DERIV,NODE_NUMBER,COMPONENT_NUMBER,VALUE,Err)
    1030. 

  1030.     ENDDO
    1031. 

  1031. 

  1032. 

  1033.     !  O U T E R   S U R F A C E
    1034. 

  1034.     CALL CMISSGeneratedMesh_SurfaceGet(GeneratedMesh,MeshComponentNumber_dummy,CMISS_GENERATED_MESH_ELLIPSOID_OUTER_SURFACE, &
    1035. 

  1035.       & OuterSurfaceNodesDarcyVel,OuterNormalXi,Err)
    1036. 

  1036. 

  1037.     write(*,*)'OuterSurfaceNodesDarcyVel = ',OuterSurfaceNodesDarcyVel
    1038. 

  1038.     write(*,*)'OuterNormalXi = ',OuterNormalXi
    1039. 

  1039. 

  1040.     !Set all outer surface nodes impermeable
    1041. 

  1041.     DO NN=1,SIZE(OuterSurfaceNodesDarcyVel,1)
    1042. 

  1042. !       VALUE = 0.0_CMISSDP
    1043. 

  1043. !       COMPONENT_NUMBER = 1
    1044. 

  1044. !       CALL CMISSBoundaryConditions_SetNode(BoundaryConditionsDarcy,DependentField,CMISS_FIELD_DELVDELN_VARIABLE_TYPE,1,OuterSurfaceNodesDarcyVel(NN), &
    1045. 

  1045. !         & COMPONENT_NUMBER,CMISS_BOUNDARY_CONDITION_IMPERMEABLE_WALL,VALUE,Err)
    1046. 

  1046. !       IF(Err/=0) WRITE(*,*) "ERROR WHILE ASSIGNING OUTER DARCY BC TO NODE", OuterSurfaceNodesDarcyVel(NN)
    1047. 

  1047. ! 
    1048. 

  1048. !       VALUE = 0.0_CMISSDP
    1049. 

  1049. !       COMPONENT_NUMBER = 2
    1050. 

  1050. !       CALL CMISSBoundaryConditions_SetNode(BoundaryConditionsDarcy,DependentField,CMISS_FIELD_DELVDELN_VARIABLE_TYPE,1,OuterSurfaceNodesDarcyVel(NN), &
    1051. 

  1051. !         & COMPONENT_NUMBER,CMISS_BOUNDARY_CONDITION_IMPERMEABLE_WALL,VALUE,Err)
    1052. 

  1052. !       IF(Err/=0) WRITE(*,*) "ERROR WHILE ASSIGNING OUTER DARCY BC TO NODE", OuterSurfaceNodesDarcyVel(NN)
    1053. 

  1053. ! 
    1054. 

  1054. !       VALUE = 0.0_CMISSDP
    1055. 

  1055. !       COMPONENT_NUMBER = 3
    1056. 

  1056. !       CALL CMISSBoundaryConditions_SetNode(BoundaryConditionsDarcy,DependentField,CMISS_FIELD_DELVDELN_VARIABLE_TYPE,1,OuterSurfaceNodesDarcyVel(NN), &
    1057. 

  1057. !         & COMPONENT_NUMBER,CMISS_BOUNDARY_CONDITION_IMPERMEABLE_WALL,VALUE,Err)
    1058. 

  1058. !       IF(Err/=0) WRITE(*,*) "ERROR WHILE ASSIGNING OUTER DARCY BC TO NODE", OuterSurfaceNodesDarcyVel(NN)
    1059. 

  1059. 

  1060. !       VALUE = 1.0_CMISSDP
    1061. 

  1061. !       COMPONENT_NUMBER = ABS(OuterNormalXi)
    1062. 

  1062. !       CALL CMISSBoundaryConditions_SetNode(BoundaryConditionsDarcy,DependentField,CMISS_FIELD_DELVDELN_VARIABLE_TYPE,1,OuterSurfaceNodesDarcyVel(NN), &
    1063. 

  1063. !         & COMPONENT_NUMBER,CMISS_BOUNDARY_CONDITION_IMPERMEABLE_WALL,VALUE,Err)
    1064. 

  1064. !       IF(Err/=0) WRITE(*,*) "ERROR WHILE ASSIGNING OUTER DARCY BC TO NODE", OuterSurfaceNodesDarcyVel(NN)
    1065. 

  1065. 

  1066.       NODE_NUMBER = OuterSurfaceNodesDarcyVel(NN)
    1067. 

  1067.       COMPONENT_NUMBER = ABS(OuterNormalXi)
    1068. 

  1068.       VALUE = 1.0_CMISSDP
    1069. 

  1069.       CALL CMISSField_ParameterSetUpdateNode(IndependentFieldDarcy,CMISS_FIELD_U_VARIABLE_TYPE,CMISS_FIELD_VALUES_SET_TYPE,1, &
    1070. 

  1070.         & CMISS_NO_GLOBAL_DERIV,NODE_NUMBER,COMPONENT_NUMBER,VALUE,Err)
    1071. 

  1071.     ENDDO
    1072. 

  1072. 

  1073. 

  1074.     !  T O P   S U R F A C E
    1075. 

  1075.     CALL CMISSGeneratedMesh_SurfaceGet(GeneratedMesh,MeshComponentNumber_dummy,CMISS_GENERATED_MESH_ELLIPSOID_TOP_SURFACE, &
    1076. 

  1076.       & TopSurfaceNodesDarcyVel,TopNormalXi,Err)
    1077. 

  1077. 

  1078.     write(*,*)'TopSurfaceNodesDarcyVel = ',TopSurfaceNodesDarcyVel
    1079. 

  1079.     write(*,*)'TopNormalXi = ',TopNormalXi
    1080. 

  1080. 

  1081.     !Set all top surface nodes to Darcy inflow BC
    1082. 

  1082.     DO NN=1,SIZE(TopSurfaceNodesDarcyVel,1)
    1083. 

  1083.       VALUE = -1.0_CMISSDP
    1084. 

  1084.       COMPONENT_NUMBER = 3
    1085. 

  1085.       CALL CMISSBoundaryConditions_SetNode(BoundaryConditionsDarcy,DependentField,CMISS_FIELD_V_VARIABLE_TYPE,1,1, &
    1086. 

  1086.         & TopSurfaceNodesDarcyVel(NN),COMPONENT_NUMBER,CMISS_BOUNDARY_CONDITION_FIXED,VALUE,Err)
    1087. 

  1087.       IF(Err/=0) WRITE(*,*) "ERROR WHILE ASSIGNING TOP DARCY BC TO NODE", TopSurfaceNodesDarcyVel(NN)
    1088. 

  1088.     ENDDO
    1089. 

  1089. 

  1090. 

  1091.   CALL CMISSSolverEquations_BoundaryConditionsCreateFinish(SolverEquationsDarcy,Err)
    1092. 

  1092. 

  1093.   !
    1094. 

  1094.   !================================================================================================================================
    1095. 

  1095.   !
    1096. 

  1096. 

  1097.   !Solve problem
    1098. 

  1098.   WRITE(*,'(A)') "Solving problem..."
    1099. 

  1099.   CALL CMISSProblem_Solve(Problem,Err)
    1100. 

  1100.   WRITE(*,'(A)') "Problem solved!"
    1101. 

  1101. 

  1102.   !
    1103. 

  1103.   !================================================================================================================================
    1104. 

  1104.   !
    1105. 

  1105. 

  1106.   !Output solution  
    1107. 

  1107.     CALL CMISSFields_Initialise(Fields,Err)
    1108. 

  1108.     CALL CMISSFields_Create(Region,Fields,Err)
    1109. 

  1109.   CALL CMISSFields_NodesExport(Fields,"QuadraticEllipsoidDrivenDarcy","FORTRAN",Err)
    1110. 

  1110.   CALL CMISSFields_ElementsExport(Fields,"QuadraticEllipsoidDrivenDarcy","FORTRAN",Err)
    1111. 

  1111.     CALL CMISSFields_Finalise(Fields,Err)
    1112. 

  1112. 

  1113.   !
    1114. 

  1114.   !================================================================================================================================
    1115. 

  1115.   !
    1116. 

  1116. 

  1117.   CALL CMISSFinalise(Err)
    1118. 

  1118. 

  1119.   WRITE(*,'(A)') "Program successfully completed."
    1120. 

  1120. 

  1121.   STOP
    1122. 

  1122. 

  1123. END PROGRAM QUADRATICELLIPSOIDDRIVENDARCYEXAMPLE
    1124. 

  1124. 

  1125.