Why does accessing a zeroGradient patch return (0 0 0) for a volVectorField -- CFD Online Discussion Forums

August 20, 2010, 14:27	Why does accessing a zeroGradient patch return (0 0 0) for a volVectorField	#1
l_r_mcglashan Senior Member Laurence R. McGlashan Join Date: Mar 2009 Posts: 370 Rep Power: 23	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). __________________ Laurence R. McGlashan :: Website

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