Abstract

A three -dimensional steady flowfield generated by transverse sonic injection into a supersonic flow was simulated by solving the Favre -averaged Navier -Stokes equations using the weighted essentially nonoscillatory (WENO) schemes and Jones -Launder k-� turbulence model. Both two -dimensional and three -dimensional results are given. The two -dimensional results agree well with the experiment. Three -di mensional results indicate that there are four pairs of vortices around the secondary injection. In the upstream of the square injection there exist two main recirculation regions and the primary vortex induces the horseshoe vortex region. After the second ary injection flow ejects from the square hole, it is forced by the supersonic main flow and then it become s a pair of counter rotation vortices towards downstream. In the downstream there is a low -pressure region that conduces a pair of helical vortices.

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