Ansys CFX – K-w SST Analysis

- June 28, 2019 at 4:47 pm
  
  PipMin
  Subscriber
  
  Hi guys,
  
  I am doing flow analysis on a disc brake and I have to evaluate the heat transfer coefficient. I have already done analysis using the k-e model but now I want to perform analysis with the k-w SST turbulence model.
  
  When I perform analysis with k-w, I have some convergence problem. I'm not reaching convergence.
  
  This is my domain initialization:
  
  I guess the problem is under the turbulence setup. I chose that turbulence setup because for the k-e analysis I used k and epsilon.
  
  Thanks!
- July 1, 2019 at 3:39 pm
  
  Rob
  Forum Moderator
  
  There's not much different between k-e and k-w in terms of stability, so I'd check how good the near wall mesh was. If you add monitors how stable are they?