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 The information provided may be out of date.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.

Stokes-Darcy-Coupling

Please login with a confirmed email address before reporting spam

Hy!

I have a problem concerning equation based modeling. I want to solve the following system of coupled nonlinear differential equations

p''(x)=A*p(x)/ln(1/r(x))
r'(x)=-B*p(x)/(r(x)*ln(1/r(x))

with the BC's:

p(0)=2
p(1)=1
r(0)=1

Unfortunately I don't know how to implement this system correctly. Can anybody give me an advice?
Thanks in advance.

0 Replies Last Post 24 mag 2014, 08:49 GMT-4
COMSOL Moderator

Hello Christian Marschik

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.