Y plus value for Realizable K Epsilon model with Scalable Wall Function

- March 14, 2019 at 8:13 am
  
  prathikshetty
  Subscriber
  
  Hi all,
  
  What should be the Y plus value range , when using Realizable K epsilon Model with Scalable Wall Function?
  
  Thanks & Regards
  
  Prathik
- March 14, 2019 at 2:43 pm
  
  Amine Ben Hadj Ali
  Ansys Employee
  
  The min yplus here is always 11.225. It is good for log-wall mesh where in some regions the local grid get refined (perhaps accidentally or due to meshing methods) and the log-wall function will then deteriorate the calculation. Using scalable wall function will avoid that deterioration.
  
  A near wall investigation will always require at yplus in the vicinity of 1..to 5. A thermal analysis with Prandtl number larger than one will be even more restrictive.
  
  Please mark this as Is Solution if the answer helps you.