INTERACTION OF SWEPT AND UNSWEPT NORMAL SHOCK-WAVES WITH BOUNDARY-LAYERS

The results of an attempt to correlate some of the flow features obser ved in the interaction between a turbulent boundary layer on a wall an d a swept shock wave generated by a fin normal to the wall with corres ponding features in the interaction between a turbulent boundary layer and an unswept normal shock are presented, It is found that the Mach number normal to the front shock in both swept and unswept interaction s can he correlated in terms of the Mach number normal to the main sho ck. Given this correlation it can be shown that certain angles measure d from flow-visualization photographs are not functions of the Mach nu mber normal to tile front shock alone. This shows why previous workers have found correlations for certain geometric parameters in swept int eractions but not for others.