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.
CFD , SST
Posted 4 set 2017, 06:25 GMT-4 Computational Fluid Dynamics (CFD) Version 5.3 0 Replies
Please login with a confirmed email address before reporting spam
I am using the SST turbulence model to simulate a thin film flow between to rotating cylinders. I am able to get a converged solution up to a certain mesh size, but as soon as I add another element in the thickness direction of the film I can no longer get convergence.
Could this be because Comsol abandons the wall functions at this stage because the mesh is considered fine enough and then the mesh is all of a sudden too coarse to integrate the flow all the way to the wall?
Also, in the manual where the SST model is described there is a parameter called lplus_cc but all I can find in Comsol is lplus_w, are they in fact the same variables?
Best regards Philip
Hello Philip Croné
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.