Abstract
Classification of various types of the reflections of a shock wave over a straight wedge is proposed. The idea about entire reflection phenomenon as a result of interaction of two processes—the shock wave reflection process and the flow deflection process—serves as a basis for the classification. To recognize the types of reflection, changes in the shapes of the reflected wave, Mach stem, and contact surface (slipstream) are taken into account. The boundaries and domains of existence for various types of reflection configuration are reported. New terms for some types of reflection are proposed. The domain of irregular non-Mach reflection is analyzed carefully. It is shown that the von Neumann reflection pattern can result from not only the weak shock reflection but also the strong shock reflection over thin wedges. Shadowgraph images of different types of irregular reflection that illustrate the suggested classification are presented. Emphasis is placed on near-wall behavior of the contact discontinuity in the Mach configuration.
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Communicated by B. W. Skews.
A. N. Semenov: Deceased.
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Semenov, A.N., Berezkina, M.K. & Krassovskaya, I.V. Classification of pseudo-steady shock wave reflection types. Shock Waves 22, 307–316 (2012). https://doi.org/10.1007/s00193-012-0373-z
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DOI: https://doi.org/10.1007/s00193-012-0373-z