simulation of roughness in turbulent flow

- September 5, 2019 at 10:00 am
  
  pmt22
  Subscriber
  
  hello
  
  which is the best turbulent model for incorporating roughness in fluid flow and also is there any criteria for refining the mesh near the wall based on the roughness height? is there any limit on the value of roughness height that can be simulated?
  
  Thanks and Regards
  
  pmt22
- September 5, 2019 at 2:40 pm
  
  DrAmine
  Ansys Employee
  
  SST model and stick to standard Yplus (Yplus=1) recommendation and boundary layer resolution (10-15) and you are on the safe side.

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