Programming turbulence models in FORTRAN

Abstract

The two-equation turbulence models Wilcox k-omega and Menter k-omega SST are programmed in FORTRAN and tested on the cases channel flow and backward-facing step. A short time step and a good initial field is required to obtain a solution. Results are adequate for most engineering purposes with a 15 \% error in predicted reattachment length. Gain from parallel programming is only found on the elliptic equation solver.