[sawyer86]

Hi there,

I want to get explicitly the gradient and the laplacian of a variable that I want to select. For example, given a FoamFile of p or U taken like output at a given time from a certain simulation, I would like to have the terms grad(p) or grad(U) and equivalently laplacian(U)...

In formulas:

grad(p)=(dp/dx,dp/dy)

grad(U)=[dU/dx, dU/dy;dV/dx, dV/dy]

laplacian(U)=[d^2U/dx^2+d^2U/dy^2, d^2V/dx^2+d^2V/dy^2]

How is it possible to have this in OF?

Thank you for those who will spend 5 minutes of their time to read this post.

Cheers

[Bernhard]

One solution is to use foamCalcEx: http://openfoamwiki.net/index.php/Contrib_foamCalcEx