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.
How to input continuity conditions (inner boundary conditions) of PDEs in COMSOL Multiphysics ？?
Posted Feb 8, 2020, 9:14 p.m. EST Acoustics & Vibrations, Geomechanics, Equation-Based Modeling Version 5.4 0 Replies
Please login with a confirmed email address before reporting spam
I am working to solve two PDEs in the pictures attached below. The governing equation for the concentration is shown in Eq.(1), where the subscript, i (i.e., i=1,2), denotes the variable in the ith layer. At the interface of two layers, there are continuity conditions as illustrated in Eqs(3a) and (3b). Eq.(3a) allows for the concentration continuity, while Eq.(3b) allows for the flux continuity. May I ask how I can input this kind of inner condition in COMSOL Multiphysics? As I know, COMSOL Multiphysics can account for the concentration continuity (i.e., Eq.(3a)) automatically. Nevertheless, as shown in Eq.(3b), n1 and n2 are two user-defined parameters. I just wonder how to input this kind of continuity condition in COMSOL, especially flux continuity. I would be truly grateful if anyone can help me to work out this problem.
Attachments:
Hello Xudong ZHAO
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.