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Reflection and Transition of Planar Curved Shock Waves by Tao Zhang; Kejing Xu; Chongguang Shi; Chengxiang Zhu; Yancheng You is a Engineering article available to read on EtoBox.

What is Reflection and Transition of Planar Curved Shock Waves about?

In this paper, the reflection of curved shock waves over a symmetry plane in planar supersonic flow is studied. This includes stable Mach reflection (MR) and the regular reflection (RR) to MR transition process. Curved shock theory (CST) is applied to derive the high-order parameters in front of and behind the shock wave. The method of curved shock characteristics is used to establish an analytical model to predict the wave configurations. The shock structures provided by the proposed model agree well with the numerical results. Flow structures, such as the height of the Mach stem and the shape of the shock wave and slip line, are studied by applying the analytical model. Isentropic waves generated from a curved wall are found to significantly influence the flow patterns. It appears that the compression waves obstruct the formation of the sonic throat and increase the Mach-stem height. The expansion waves have the opposite effect. The evolution mechanism of the Mach stem is found in conjunction with the RR-to-MR transition process. The CST is extended to a moving frame and used to model the transition. The time history of the moving triple point illustrates the effects of the incid

Who reads Reflection and Transition of Planar Curved Shock Waves?

Author

Tao Zhang; Kejing Xu; Chongguang Shi; Chengxiang Zhu; Yancheng You

Publisher

Cambridge University Press (CUP)

Published

2023

Language

EN

Field

Engineering (Physical Sciences)