A comparison of turbulence models for an impinging jet in a crossflow

A numerical simulation of a previous wind tunnel experiment on an impinging jet in a crossflow was conducted. This study compared the results of the twoequation k-a turbulence model with those obtained with the one-equation Baldwin-Barth and the zero-equation Baldwin-Lomax turbulence model. From the Cp distribution along the ground level of the symmetry plane, it was shown that among the three turbulence models tested, the flow field of the ground vortex and its location were best simulated by the k-E turbulence model. Lower C, and o, coefficients in the k-E model yielded best results for the vortex location, but did not accurately capture the ground vortex strength represented by Cp,, The one-equation Baldwin-Barth turbulence model gave a poor prediction of the ground vortex behavior, and the Baldwin-Lomax model just failed for this type of problem.