Menu

Discussion Forum

New Discussion
Filtern

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 The information provided may be out of date.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 a 0 order model into a 2D model

Posted 28.09.2011, 19:22 GMT-4 Chemical Reaction Engineering Version 4.2 0 Replies

David Stephenson
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

I am trying to couple a 0 order tank model dc/dt=Q/V*(cout-c) into 2D time dependent reactor model, where Q/V are constants (volumetric flow and tank volume respectively). The average of the outlet concentration from the 2D reactor model needs to become cout in the 0 order tank model. The concentration c from the 0 order model needs to be the inlet concentrations along the boundary of the 2D time dependent reactor model.

So far I have used a distributed ODE to create the 0 order model along the inlet boundary of the 2D reactor model. I used Boundary Probes on the outlet of the 2D reactor model to find the average concentration. I then inputed that average concentration from the Boundary Probes into the 0 order model.

The problem is I don't think the two models are coupling well or something. I am observing that my mass balance on the system is not working. Is there another way to couple or create the 0 order tank model into my 2D reactor model?

Thanks!
0 Replies Last Post 28.09.2011, 19:22 GMT-4
COMSOL Moderator

Hello David Stephenson

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.

Suggested Content