Boundary Layer Mesh (y+) Regeneration
Boundary Layer Mesh (y+) Regeneration automatically adjusts the thickness of the first layer of the boundary layer mesh according to solution data calculated using an initial mesh so that a near constant y+ value is achieved at all surface nodes. The new y+ value can be higher or lower than the existing y+ values. Certain solvers and certain turbulence models require y+ values within certain ranges. If the original mesh deviates too far from these desired ranges, Boundary Layer Mesh Regeneration can be used to adjust the thickness of the first layer elements so that the y+ values meet the required criteria.