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#1 |
New Member
Loris
Join Date: Sep 2013
Posts: 17
Rep Power: 12 ![]() |
Hi everyone!
I would like to know which are the principal characteristics of SSG Reynolds Stress Model. I have solved a problem with SST model. Using SSG model, with the same problem, I don't succeed to find the convergence. The residual does not go down and I do not find which could be the cause of this. My prolem is a air flow in a rectangular channel that collides with a cube. I attached the figure of the mesh around the cube. So, If someone suggest me some trick for the convergence with SSG model, I will be grateful for the help. Thank you ![]() |
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#2 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,816
Rep Power: 144 ![]() ![]() ![]() ![]() |
The Reynolds Stress Models all suffer from difficult numerics which makes them hard to converge. You have to use small time steps, high quality mesh, double precision numerics and a good initial condition to get them to converge.
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