|November 5, 2012, 04:51||
Join Date: May 2009
Posts: 16Rep Power: 9
Does the fvc::grad operator depend on the boundary type definition of the field variable on which it operates. For example, consider a scalar field variable "rho" and one of the boundaryField of "rho" has a zeroGradient specified.
I understand from a small piece of code I wrote that the boundaryField values of the gradient (fvc::grad(rho)) return zero vectors for this BC.
But will the internal gradient field of "rho" -> fvc::grad(rho) be in any way affected by this zeroGrad boundary condition ?
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