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foam-extend4.1-coherent-io/applications/solvers/solidMechanics/elasticSolidFoam/createFields.H
2014-02-23 10:54:20 +00:00

145 lines
3.2 KiB
C

Info<< "Reading field U\n" << endl;
volVectorField U
(
IOobject
(
"U",
runTime.timeName(),
mesh,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
mesh
);
volTensorField gradU
(
IOobject
(
"grad(U)",
runTime.timeName(),
mesh,
IOobject::NO_READ,
IOobject::NO_WRITE
),
mesh,
dimensionedTensor("zero", dimless, tensor::zero)
);
surfaceVectorField snGradU
(
IOobject
(
"snGrad(U)",
runTime.timeName(),
mesh,
IOobject::NO_READ,
IOobject::NO_WRITE
),
mesh,
dimensionedVector("zero", dimless, vector::zero)
);
volVectorField V
(
IOobject
(
"V",
runTime.timeName(),
mesh,
IOobject::READ_IF_PRESENT,
IOobject::AUTO_WRITE
),
fvc::ddt(U)
);
volTensorField gradV = fvc::ddt(gradU);
surfaceVectorField snGradV = (snGradU - snGradU.oldTime())/runTime.deltaT();
volSymmTensorField epsilon
(
IOobject
(
"epsilon",
runTime.timeName(),
mesh,
IOobject::READ_IF_PRESENT,
IOobject::AUTO_WRITE
),
mesh,
dimensionedSymmTensor("zero", dimless, symmTensor::zero)
);
volSymmTensorField sigma
(
IOobject
(
"sigma",
runTime.timeName(),
mesh,
IOobject::READ_IF_PRESENT,
IOobject::AUTO_WRITE
),
mesh,
dimensionedSymmTensor("zero", dimForce/dimArea, symmTensor::zero)
);
volVectorField divSigmaExp
(
IOobject
(
"divSigmaExp",
runTime.timeName(),
mesh,
IOobject::NO_READ,
IOobject::NO_WRITE
),
mesh,
dimensionedVector("zero", dimForce/dimVolume, vector::zero)
);
constitutiveModel rheology(sigma, U);
volScalarField rho = rheology.rho();
volScalarField mu = rheology.mu();
volScalarField lambda = rheology.lambda();
surfaceScalarField muf = rheology.muf();
surfaceScalarField lambdaf = rheology.lambdaf();
surfaceVectorField n = mesh.Sf()/mesh.magSf();
// check if there are contact boundaries to know
// if contact fields should be written for visualisation
// note: this is just for visualisation
// bool contactBoundaries = false;
// forAll(U.boundaryField(), patchi)
// {
// if(U.boundaryField()[patchi].type()
// ==
// solidContactFvPatchVectorField::typeName)
// {
// contactBoundaries = true;
// break;
// }
// }
// for aitken relaxation
volVectorField aitkenDelta
(
IOobject
(
"aitkenDelta",
runTime.timeName(),
mesh,
IOobject::NO_READ,
IOobject::NO_WRITE
),
mesh,
dimensionedVector("zero", dimLength, vector::zero)
);
// aitken relaxation factor
scalar aitkenInitialRes = 1.0;
scalar aitkenTheta = 0.1;