Shock wave shape on power law leading edges
Computations using the Direct Simulation Monte Carlo method are presented for hypersonic flow on power law shaped leading edges. The primary aim of this paper is to examine the geometry effect of such leading edges on the shock wave structure. The sensitivity of the shock wave shape and shock standoff distance to shape variations of such leading edges is calculated by using a model that classifies the molecules in three distinct classes, i.e., undisturbed freestream molecules, molecules that had struck the surface of the leading edge, and molecules that had been indirectly affected by the presence of the leading edge. Calculations show that the shock wave shape is in surprising agreement with that predicted by the hypersonic small disturbance theory for the flow conditions considered.
KeywordsShock Wave Standoff Distance Direct Simulation Monte Carlo Hypersonic Flow Shock Wave Structure
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