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Why does accessing a zeroGradient patch return (0 0 0) for a volVectorField |
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Senior Member
Laurence R. McGlashan
Join Date: Mar 2009
Posts: 370
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If a patch is zeroGradient, why does accessing a volVectorField return (0 0 0)? This doesn't happen with a volScalarField. In other words:
Info << someVolScalarField.boundaryField()[patchID] << endl; will give something non-zero. Info << someVolVectorField.boundaryField()[patchID] << endl; will give n(0 0 0).
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