A y+ wall distance estimation script provided by cfd online The following page explains how you can generate the desired y+ (yplus) value on simscale and check if your settings are correct To estimate this you can do the following Compute the wall shear stress Learn with simscale's knowledge base. \\underline{\\textbf{applying y+ through meshing in simscale}} simscale allows you to perform “inflate boundary layers” on to the geometry surface as seen below
This option can be applied to a surface where the layers will then be inflated from the surface to allow you to control the y+ of the mesh You then need to first determine your desired y+ depending on your usage of wall functions. The y+ value will determine whether or not your wall modelling strategy is valid My case is unsteady flow past a cylinder using les I am just starting using fluent for my simulations and in many bibliography the y+ and y* appears to be very important to make a right mesh, Estimates the wall distance needed to obtain a desired y+ value
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