I have performed a CFD simulation over a front wing.
My objective when I was meshing was to achieve a y+150. I set the ratio to 0,3 and made the calculations according to What is y+ (yplus)?
The layers were perfectly created in the mesh visualizer. And of course, I’d used wall functions.
My question comes up when postprocessing the results, I got the result of y+1 in most of the wing. If I set in Paraview to just show the y+ value between 1 and 10 I get this:
It is true that some regions may not have the best y+ to rely on perfect results, but considering that the flow is detaching maybe that is what is causing the y+ value to increase a bit.
My questions are:
1-Why in paraview I get the value of y+1 if I was using wall functions and scoping for a y+150? Is because when I use wall functions then in the post-processing if the value is well approx it returns the value of 1?
2-Why not all the zones of the wing have a y+ close to my desired value? Because the boundary layer in that regions needs to be different or because the flow is detaching?
If you want to have a look at the project: https://www.simscale.com/workbench/?pid=1129744023204751944&mi=spec%3Acbacb17a-e81c-432a-a60d-eab9a8af5dce%2Cservice%3AMESHING%2Cstrategy%3A52&ps=algorithm%2FFullSnappyHexMesh--oneOf%2Frefinements%2F0&sh=48