zero flux boundary subroutine
 

Hi experts,

I am sloving a gas diffusion problem with a solid cell type in my model. I have set zero flux for scalars in default wall boundary region. However, I suspect calculated resluts is not reasonable and some of mass miss. In previous discussion in this forum, I see someone said there is a zero flux boundary subroutine. Do you know the name of this subroutine in STAR-CD? Thanks for your help.

Gavin