19 lines
556 B
C++
19 lines
556 B
C++
{
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// force residual is the net force on the model
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// this should got to zero in a converged steady state model
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// should be altered for parallel runs
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vector netForce = vector::zero;
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forAll(mesh.boundary(), patchi)
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{
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netForce += sum
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(
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mesh.Sf().boundaryField()[patchi]
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&
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(
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2*mu.boundaryField()[patchi]*symm(gradU.boundaryField()[patchi])
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+ lambda*tr(gradU.boundaryField()[patchi])*I
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)
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);
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}
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forceResidual = mag(netForce);
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}
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