Periodic vs. inlet-out;et

lego

Hi!

As I mentioned in other topics I calculate mixing in a fully developped flow through a rod bundle. I calculated the developed flow by periodic boundary conditions. I changed the periodic conditions to inlet-outlet, because I need to solve diffusion of additional variables.

After writing the new def file with inlet-outlet, I imported the result of the previous calculation (periodic). Than checked by Post, but it was not exactly the same! I did not changed the mesh! Is it possible, that non of the CFX function works correct? (I had similar problem with cloud interpolation...)

How to perform a calculation-chain in which the flow is calculated by periodic boundaries, but the heat transfer, or additional variable diffusion is to be calculated by inlet-outlet boundary calculation?

LEGO