Flow Topology of Gas, Liquid and 3D Obstacles in Hypersonic Flow
نویسنده
چکیده
The flow topologies of gas and liquid injection into hypersonic crossflow are compared with the flow topology around 3D rigid obstacles in hypersonic flow. Experimental techniques such as oil flow visualization, infrared thermography, sublimation technique and high speed Schlieren photography are applied for a Mach 6 crossing flow on a flat plate. The shock system and the vortex system are visualized and discussed for all cases. Pressure ratio for gas injection, momentum flux ratio for liquid injection and Reynolds number for 3D obstacles are taken into consideration. The effects of non-dimensional numbers on the flow topologies are analyzed. Similarities and differences among different topologies are explained by studying the vortical aerodynamics, making use of CFD simulations.
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