Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
Boundary conditions - dilute species transport
Posted Mar 5, 2016, 1:50 p.m. EST Fluid & Heat, Computational Fluid Dynamics (CFD), Chemical Reaction Engineering 0 Replies
Please login with a confirmed email address before reporting spam
I am trying to model diffusion from a porous material suspended in water. I have attached a screenshot of the geometry. I need to simulate diffusion from the ellipsoid (polymer) into the surrounding water (transient study), where I have already set a velocity field from a multiphysics coupling with laminar flow. How do I set a continuity boundary condition for concentration between the two domains? I have an uniform initial concentration in the ellipsoid C0 and concentration 0 in the surrounding block. When I simulate these don't change. Which boundary condition should I apply?
Thank you in advance,
Andrea Chatrian
Attachments:
Hello Andrea Chatrian
Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.
If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.