Can we handle steep gradients with blok command?

Kali Sanjay

Dear Friends!

I am solving a porous medium problem and activated CONPOR in some region. So my AEAST changed in some region as per conpor. However the fluid and concentrations in the porous medium are flowing into adjuscent non-porous medium which is also part of computational domain. When I activated conpor, the mass balance is distrubed severly. The fluid is same in the porous region as well outside (single phase). Looks like problem at the interface and mass flux is inconsistant with mass in domain increasing with time. However the initial concentration gradients are too steep near the interface which must be causing this mass imbalance. Can someone help what to do when we activate conpor command? Do we have to do some blok corrections at the interface? If so how to? Thanks in advance and looking forward to Mike for help!

Sanjay