Near-wall Mesh Spacing y+ Calculator
This tool calculates the distance required from the wall to the adjacent cell centre to obtain the required dimensionless wall spacing (y+) used in the log-law of the wall functions for the CFD calculations.
Type the required values to get the first cell-wall spacing:
Free Stream Velocity (U∞, m/s)
Fluid Density (ρf, kg/m3)
Fluid Viscosity (µf, kg/ms)
Reference Length (m)
Required y+
Cell-Wall Spacing (m)
Wall Shear Stress
Reynolds Number