Prediction of Transverse Injection of a Sonic Jet in Supersonic Crossflow

Navier-Stokes predictions of mixing by a sonic jet injected into a Mach 1.98 crosso w are presented. The injection is transverse, typical of a jet in crosso w (JICF) problem. Both air and helium injection into crosso w air are studied. A two-equation turbulence model by Wilcox (1998) is used. The steady predictions resolve the complicated shock and vortical structures in the o w, including the barrel shock and Mach disk and the counter-rotating vortex pair that dominates mixing in the wake. The results are in good agreement with Rayleigh scattering measurements by Gruber et al. (1996).