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Modified tolerances to take truncation error into account

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mattijs
2010-01-13 19:08:47 +00:00
parent 1e78a14865
commit 0496e18123
1 changed files with 9 additions and 2 deletions
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11
src/OpenFOAM/meshes/polyMesh/polyPatches/basic/coupled/coupledPolyPatch.C
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@ -199,13 +199,20 @@ Foam::scalarField Foam::coupledPolyPatch::calcFaceTol
const face& f = faces[faceI];
// 1. calculate a typical size of the face. Use maximum distance
// to face centre
scalar maxLenSqr = -GREAT;
// 2. as measure of truncation error when comparing two coordinates
// use SMALL * maximum component
scalar maxCmpt = -GREAT;
forAll(f, fp)
{
maxLenSqr = max(maxLenSqr, magSqr(points[f[fp]] - cc));
const point& pt = points[f[fp]];
maxLenSqr = max(maxLenSqr, magSqr(pt - cc));
maxCmpt = max(maxCmpt, cmptMax(cmptMag(pt)));
}
tols[faceI] = matchTol * Foam::sqrt(maxLenSqr);
tols[faceI] = max(SMALL*maxCmpt, matchTol*Foam::sqrt(maxLenSqr));
}
return tols;
}