Numeca Fine

dimitris

Hi

I was wandering if anybody knows why when running a problem with prescribed mass flow in inlet and outlet leads to divergence and why if i run the same problem with prescribing the velocity vector values in inlet and mass flow in outlet does not lead to divergence.Is there any way to make the code ''accept'' more numerical instabilities so as to accept the mass flow inlet and outlet boundary conditions? Furthermore the combination of prescribing velocity vectors in inlet and mass flow in outlet is correct or wrong even if i can calculate the mass flow in the inlet boundary condition from the velocity vectors?

Thanks for your time