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foam-extend4.1-coherent-io/applications/solvers/newStressAnalysis/newContactStressFoam/createFields.H

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mesh.weights();
Info<< "Reading field U\n" << endl;
volVectorField U
(
IOobject
(
"U",
runTime.timeName(),
mesh,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
mesh
);
// Create gradient field
volTensorField gradU = fvc::grad(U);
volSymmTensorField sigma
(
IOobject
(
"sigma",
runTime.timeName(),
mesh,
IOobject::READ_IF_PRESENT,
IOobject::AUTO_WRITE
),
mesh,
dimensionedSymmTensor("zero", dimForce/dimArea, symmTensor::zero)
);
// Create rheology model
rheologyModel rheology(sigma);
// Create contact problem
contactProblem contact(U, gradU);