From: Effect of RANS Turbulence Model on Aerodynamic Behavior of Trains in Crosswind
Mesh
Surface size (mm)
Number of grids (million)
c s
Relative error (%)
1
112
11.95
4.09
‒
2
80
23.81
4.00
− 2.20
3
72
29.85
4.04
1.22