[starboy1985]

Hi, I am writing a code which need to generate the fvc space from fvm matrix.

For example, I have
fvVectorMatrix UEqn
(
fvm::ddt(U)
+fvm::div(phi, U)
- fvm::laplacian(nu, U)
);

How could I get the same geometricField (fvc::ddt(U)+fvc::div(phi, U)-fvc::laplacian(nu,U)+fvc::grad(p))) just use fvmatrix UEqn and volVectorField U?

I just do the UEqn.Amul for the internalField and add the aboundary terms, but I get different result. Anyone can help me to know hwo to do this?

Thank you very much.