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 The information provided may be out of date.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.
Rotating boundary in fluid flow problem
Posted 2 feb 2019, 08:59 GMT-5 Fluid & Heat, Computational Fluid Dynamics (CFD), Parameters, Variables, & Functions Version 4.0a 0 Replies
Please login with a confirmed email address before reporting spam
Hi,
I am quite new to Comsol and am trying to model the stationary fluid flow around a rotating circle within a rectangle. I'm a bit unsure of how to speicfiy the rotating boundary condition upon the internal circle. I've tried defining the angular velcoity as two parameters and speicifying this as the boundary velocity; U_x = -(sqrt(x^2+y^2)RPMsin(atand(y/x))) U_y = (sqrt(x^2+y^2)RPMcos(atand(y/x))) Any help is much apperciated.
Thanks, Dónal
Attachments:
Hello Donal Murphy
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.