How to calculate the gradient in the boundary cells -- CFD Online Discussion Forums

August 15, 2011, 17:04	How to calculate the gradient in the boundary cells	#1
ywang Member Yong Wang Join Date: Apr 2009 Posts: 34 Rep Power: 17	Hi, everyone. I want to calculate the gradients of a volScalarField parameter F in the boundary cells. Now, I am using fvc::grad(F,gradF) to calculate the gradients in all cells, and then look up the values in the boundary cells. Is there any other more efficient method? I just want to reduce the time used for calculating. Thanks. Yong rajibroy likes this.

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