Discussion Forum

Forum Home

New Discussion

New Discussion

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.

Fluid Structure Interaction -- Not solving for deformation

Posted 14 juin 2010, 13:26 UTC−4 Fluid & Heat 4 Replies

John

Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hello,

I'm having an issue with the fluid structure-interaction model in the structural mechanics module using COMSOL 4.0. My system is similar to the "ALE Fluid-Structure Interaction" and "Obstacle in a Fluid Channel" tutorials, which I was able run successfully in COMSOL 4.0.

When I set up a new model with a different geometry but the same solver settings, the system appears to solve only the fluid flow problem without calculating the deformation of the object in the channel. (i.e. I get a pressure and velocity distribution of the fluid with no deflection of the beam in the fluid.)

I have went over the solver and fsi settings several times, and I can not find any difference between the working and not-working models. Any suggestions on things to try?

Thanks,
John Larson

Tutorials:
www.comsol.com/showroom/documentation/model/361/
www.comsol.com/showroom/gallery/987/

4 Replies Last Post 27 juin 2010, 09:06 UTC−4

Danial Tz

Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago

Hi John,

Change the frame to Spatial both in the "solution" and also in the each plots' root.

John

Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago

Thanks, that worked.

Maral Hassani

Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago

hi
I want to model blood flow in a carotid artery.I wonder how to model FSI for that.whould u please help me!?
I would be very thankful..
maral

Danial Tz

Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago

hi
I want to model blood flow in a carotid artery.I wonder how to model FSI for that.whould u please help me!?
I would be very thankful..
maral

Salam Maral,

Please make a new post and we can discuss there.

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