foam-extend4.1-coherent-io/applications/solvers/solidMechanics/elasticNonLinULSolidFoam/elasticNonLinULSolidFoam.C

/*---------------------------------------------------------------------------*\
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    \\  /    A nd           | Copyright (C) 1991-2005 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.

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Application
    elasticNonLinULSolidFoam

Description
    Finite volume structural solver employing a incremental strain updated
    Lagrangian approach.
    
    Valid for small strains, finite displacements and finite rotations.
    
Author
    Philip Cardiff UCD

\*---------------------------------------------------------------------------*/

#include "fvCFD.H"
#include "constitutiveModel.H"
#include "solidInterface.H"
#include "volPointInterpolation.H"
#include "pointPatchInterpolation.H"
#include "primitivePatchInterpolation.H"
#include "pointFields.H"
#include "twoDPointCorrector.H"
#include "leastSquaresVolPointInterpolation.H"
#include "processorFvPatchFields.H"
#include "transformGeometricField.H"
#include "symmetryPolyPatch.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

int main(int argc, char *argv[])
{
# include "setRootCase.H"
# include "createTime.H"
# include "createMesh.H"
# include "createFields.H"
# include "readDivDSigmaExpMethod.H"
# include "readDivDSigmaLargeStrainExpMethod.H"
# include "readMoveMeshMethod.H"
# include "createSolidInterfaceNonLin.H"
# include "findGlobalFaceZones.H"

//* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

  Info << "\nStarting time loop\n" << endl;
  
  for (runTime++; !runTime.end(); runTime++)
    {
      Info<< "Time = " << runTime.timeName() << nl << endl;
      	  
#     include "readSolidMechanicsControls.H"

      int iCorr = 0;
      lduMatrix::solverPerformance solverPerf;
      scalar initialResidual = 1.0;
      scalar relativeResidual = 1.0;
      lduMatrix::debug = 0;
      
      do
	{ 
	  DU.storePrevIter();

#         include "calculateDivDSigmaExp.H"
#         include "calculateDivDSigmaLargeStrainExp.H"

	  //- updated lagrangian large strain momentum equation
	  fvVectorMatrix DUEqn
	    (
	     fvm::d2dt2(rho,DU)
	     ==
	     fvm::laplacian(2*muf + lambdaf, DU, "laplacian(DDU,DU)")
	     + divDSigmaExp
	     + divDSigmaLargeStrainExp
	     );
	  
	  if(solidInterfaceCorr)
	    {
	      solidInterfacePtr->correct(DUEqn);
	    }

	  solverPerf = DUEqn.solve();

	  if(iCorr == 0)
            {
	      initialResidual = solverPerf.initialResidual();
            }
	 
	  DU.relax();
	  
	  gradDU = fvc::grad(DU);
	  
#         include "calculateDEpsilonDSigma.H"
#         include "calculateRelativeResidual.H"
	  	  
	  Info << "\tTime " << runTime.value()
	       << ", Corrector " << iCorr
	       << ", Solving for " << DU.name()
	       << " using " << solverPerf.solverName()
	       << ", res = " << solverPerf.initialResidual()
	       << ", rel res = " << relativeResidual
	       << ", inner iters " << solverPerf.nIterations() << endl;
        }
      while
        (
	 //solverPerf.initialResidual() > convergenceTolerance 
	 relativeResidual > convergenceTolerance
         && ++iCorr < nCorr
	 );
            
      Info << nl << "Time " << runTime.value() << ", Solving for " << DU.name() 
	   << ", Initial residual = " << initialResidual 
	   << ", Final residual = " << solverPerf.initialResidual()
	   << ", No outer iterations " << iCorr << endl;
            
#     include "moveMesh.H"
#     include "rotateFields.H"
#     include "writeFields.H"

      Info << nl << "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
	   << "  ClockTime = " << runTime.elapsedClockTime() << " s" 
	   << endl;
    }
  
  Info<< "End\n" << endl;
  
  return(0);
}

// ************************************************************************* //