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.

Air in the deformable pipe problem

Please login with a confirmed email address before reporting spam

I tried simulating the air flowing in a deformable pipe but kept having problem, so I decided to see if the initial condition is stable. I now kept both inlet and outlet pressure as 0 and zero flow rate as well. I then added a time-dependent solver for 1s with time-step of 0.001s, but it stopped at ~0.13s, and it didn't appear a stable situation, instead the wall was bouncing around..... Could anyone please help me find out what went wrong? Many thanks!
P.S. The solved file was too large to be uploaded so I uploaded the unsolved one.


1 Reply Last Post 10 nov. 2015, 08:51 UTC−5

Please login with a confirmed email address before reporting spam

Posted: 9 years ago 10 nov. 2015, 08:51 UTC−5
So.... Nobody in this forum knows anything about FSI? I'm surprised.....
So.... Nobody in this forum knows anything about FSI? I'm surprised.....

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.