A numerical investigation of the evolution of 2-D disturbances in hypersonic boundary layers and the effect on the flow structure due to the existence of shocklets |
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| Authors: | Wei?Cao Email author" target="_blank">Heng?ZhouEmail author |
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| Affiliation: | Department of Mechanics, Tianjin University; Liu Hui Center of Applied Mathematics, Nankai and Tianjin University, Tianjin 300072, China |
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| Abstract: | The evolution of 2-D disturbances in hypersonic boundary layer with Mach number 6,8, and 10 was investigated numerically by
three different numerical schemes. At the entrance, second mode T-S waves with different amplitudes were introduced, and the
relation between the Mach number and the amplitude of the disturbance when shocklets started to appear was investigated. By
comparing the disturbance velocity profiles with those provided by linear stability theory, the effects of shocklets on flow
structures were also investigated. |
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| Keywords: | hypersonic boundary layers T-S wave shocklet direct numerical simulation |
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