Interaction of Swept and Unswept Normal Shock Waves with Boundary Layers

摘要

The results of an attempt to correlate some of the flow features observed in the interaction between a turbulent boundary layer on a wall and a swept shock wave generated by a fin normal to the wall with corresponding 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 interactions can be correlated in terms of the Mach number normal to the main shock. Given this correlation it can be shown that certain angles measured from flow-visualization photographs are not functions of the Mach number normal to the front shock alone. This shows why previous workers have found correlations for certain geometric parameters in swept interactions but not for others.