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Advances in Some Hypersonic Vehicles Technologies
A finite difference method is used to do direct numerical simulation (DNS) of hypersonic unsteady flowfield under the action of freestream pulse wave. The response of the hypersonic flowfield to freestream pulse wave is studied, and the generation and evolution characteristics of the boundary layer disturbance waves are discussed. The effects of the pulse wave types on the disturbance mode in the boundary layer are investigated. Results show that the freestream disturbance waves significantlydoi:10.5772/intechopen.70660 fatcat:azvjrbhffnakvkqkywgcg3e3yy