Mean flow field and surface heating produced by unequal shock interactions at hypersonic speeds
Abstract
Mean velocity profiles were measured in a free shear layer produced by the interaction of two unequal strength shock waves at hypersonic free-stream Mach numbers. Measurements were made over a unit Reynolds number range of 3,770,000 per meter to 17,400,000 per meter based on the flow on the high velocity side of the shear layer. The variation in measured spreading parameters with Mach number for the fully developed flows is consistent with the trend of the available zero velocity ratio data when the Mach numbers for the data given in this study are taken to be characteristic Mach numbers based on the velocity difference across the mixing layer. Surface measurements in the shear-layer attachment region of the blunt-body model indicate peak local heating and static pressure consistent with other published data. Transition Reynolds numbers were found to be significantly lower than those found in previous data.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- December 1975
- Bibcode:
- 1975STIN...7615409B
- Keywords:
-
- Flow Distribution;
- Hypersonic Speed;
- Shock Wave Interaction;
- Surface Temperature;
- Compressible Flow;
- Mixing Layers (Fluids);
- Shear Layers;
- Static Pressure;
- Velocity Distribution;
- Viscous Flow;
- Fluid Mechanics and Heat Transfer