Ansys CFX – K-w SST Analysis

    • PipMin

      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.


    • Rob
      Ansys Employee

      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?

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