Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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.

coupling between different dimensions

Please login with a confirmed email address before reporting spam

Hi all,

Does anyone know how to implement the following:

I have a 2D model, a rectangular channel. In this 2D domain I need to solve a system of equations. Regarding the boundary conditions, however, I hope I can solve a 1D equation at one boundary (say the left boundary) and use it as the boundary condition for my 2D model. To make things easy let's say everything is stationary for now.

One physical context would be solving 2D Nernst-Planck equation in a channel while using the solution of Poisson-Boltzmann equation at one boundary as boundary condition. The problem can also be implemented with PDE module, too.

Does anyone know how to implement this?

Many thanks.

0 Replies Last Post Aug 22, 2012, 11:26 a.m. EDT
COMSOL Moderator

Hello Mao Mao

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.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.