applications/solvers/solidMechanics/elasticNonLinULSolidFoam/elasticNonLinULSolidFoam.C

   1 /*---------------------------------------------------------------------------*\
   2   =========                 |
   3   \\      /  F ield         | foam-extend: Open Source CFD
   4    \\    /   O peration     | Version:     3.2
   5     \\  /    A nd           | Web:         http://www.foam-extend.org
   6      \\/     M anipulation  | For copyright notice see file Copyright
   7 -------------------------------------------------------------------------------
   8 License
   9     This file is part of foam-extend.
  10
  11     foam-extend is free software: you can redistribute it and/or modify it
  12     under the terms of the GNU General Public License as published by the
  13     Free Software Foundation, either version 3 of the License, or (at your
  14     option) any later version.
  15
  16     foam-extend is distributed in the hope that it will be useful, but
  17     WITHOUT ANY WARRANTY; without even the implied warranty of
  18     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19     General Public License for more details.
  20
  21     You should have received a copy of the GNU General Public License
  22     along with foam-extend.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 Application
  25     elasticNonLinULSolidFoam
  26
  27 Description
  28     Finite volume structural solver employing a incremental strain updated
  29     Lagrangian approach.
  30
  31     Valid for small strains, finite displacements and finite rotations.
  32
  33 Author
  34     Philip Cardiff UCD
  35
  36 \*---------------------------------------------------------------------------*/
  37
  38 #include "fvCFD.H"
  39 #include "constitutiveModel.H"
  40 #include "solidInterface.H"
  41 #include "volPointInterpolation.H"
  42 #include "pointPatchInterpolation.H"
  43 #include "primitivePatchInterpolation.H"
  44 #include "pointFields.H"
  45 #include "twoDPointCorrector.H"
  46 #include "leastSquaresVolPointInterpolation.H"
  47 #include "processorFvPatchFields.H"
  48 #include "transformGeometricField.H"
  49 #include "symmetryPolyPatch.H"
  50
  51 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  52
  53 int main(int argc, char *argv[])
  54 {
  55 #   include "setRootCase.H"
  56 #   include "createTime.H"
  57 #   include "createMesh.H"
  58 #   include "createFields.H"
  59 #   include "readDivDSigmaExpMethod.H"
  60 #   include "readDivDSigmaLargeStrainExpMethod.H"
  61 #   include "readMoveMeshMethod.H"
  62 #   include "createSolidInterfaceNonLin.H"
  63 #   include "findGlobalFaceZones.H"
  64
  65 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  66
  67     Info<< "\nStarting time loop\n" << endl;
  68
  69     while(runTime.loop())
  70     {
  71         Info<< "Time = " << runTime.timeName() << nl << endl;
  72
  73 #       include "readSolidMechanicsControls.H"
  74
  75         int iCorr = 0;
  76         lduMatrix::solverPerformance solverPerf;
  77         scalar initialResidual = 1.0;
  78         scalar relativeResidual = 1.0;
  79         lduMatrix::debug = 0;
  80
  81         do
  82         {
  83             DU.storePrevIter();
  84
  85 #           include "calculateDivDSigmaExp.H"
  86 #           include "calculateDivDSigmaLargeStrainExp.H"
  87
  88             //- Updated lagrangian momentum equation
  89             fvVectorMatrix DUEqn
  90             (
  91                 fvm::d2dt2(rho,DU)
  92              ==
  93                 fvm::laplacian(2*muf + lambdaf, DU, "laplacian(DDU,DU)")
  94               + divDSigmaExp
  95               + divDSigmaLargeStrainExp
  96             );
  97
  98             if (solidInterfaceCorr)
  99             {
 100                 solidInterfacePtr->correct(DUEqn);
 101             }
 102
 103             solverPerf = DUEqn.solve();
 104
 105             if (iCorr == 0)
 106             {
 107                 initialResidual = solverPerf.initialResidual();
 108             }
 109
 110             DU.relax();
 111
 112             gradDU = fvc::grad(DU);
 113
 114 #           include "calculateDEpsilonDSigma.H"
 115 #           include "calculateRelativeResidual.H"
 116
 117             Info<< "\tTime " << runTime.value()
 118                 << ", Corrector " << iCorr
 119                 << ", Solving for " << DU.name()
 120                 << " using " << solverPerf.solverName()
 121                 << ", res = " << solverPerf.initialResidual()
 122                 << ", rel res = " << relativeResidual
 123                 << ", inner iters " << solverPerf.nIterations() << endl;
 124         }
 125         while
 126         (
 127             //solverPerf.initialResidual() > convergenceTolerance
 128             relativeResidual > convergenceTolerance
 129          && ++iCorr < nCorr
 130         );
 131
 132       Info << nl << "Time " << runTime.value() << ", Solving for " << DU.name()
 133            << ", Initial residual = " << initialResidual
 134            << ", Final residual = " << solverPerf.initialResidual()
 135            << ", No outer iterations " << iCorr << endl;
 136
 137 #       include "moveMesh.H"
 138 #       include "rotateFields.H"
 139 #       include "writeFields.H"
 140
 141         Info<< nl << "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
 142             << "  ClockTime = " << runTime.elapsedClockTime() << " s"
 143             << endl;
 144     }
 145
 146     Info<< "End\n" << endl;
 147
 148     return(0);
 149 }
 150
 151
 152 // ************************************************************************* //