I am working on simulation of savonius hydrokinetic turbine in cfx. I have set inflation layer on turbine as shown in photos. It is observed in the previous investigation that, the non-dimensional wall distance (y+) must be less than 1 for the SST k-ω model for capturing the high levels of separation and adverse pressure gradients around the wall of the blades. Should i get Y+ value from cfx pre or cfx post as per my inflation layer ? Where i am getting the y+ value for turbine only in cfx? I have attached some figure of my setup.
Hello, first of all, you need to set a face at the location you want to know, and after fluid calculation, you can see the specific Y+value at that time.
Hello, after define optimal yplus, enter this value as well as enter input information in special location for y+. Give us true value for wall spacing"the thickness of the first layer wall for shape mesh, close the location and re-solve, then define surface or Boundary layer for shape.,draw curve of y+ in y-axies appears less than optimal value, so the solution is correct
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