REYNOLDS-NUMBER EFFECTS IN SWEPT-SHOCK-WAVE TURBULENT-BOUNDARY-LAYER INTERACTION

The interaction between a turbulent boundary layer and a glancing shoc k wave produced by a wedge is studied numerically and experimentally. The flows correspond to a nominal Mach number 2.5, two widely differen t Reynolds numbers, and a range of incidence angles giving both attach ed and separated flows. The Reynolds number effects on several now fea tures, including upstream influence, incipient separation, and incepti on length, are discussed. The computations are compared with the low-R eynolds-number experiments of Kubota and Stollery and also to some new ly performed high-Reynolds-number experiments, and good agreement is a chieved.