Negative Mach reflection with multiple three-shock configurations for shock wave diffraction on a wedge

P. Yu. Georgievskii, A. N. Maksimov, V. P. Fokeev

Lomonosov Moscow State University, Institute of Mechanics

Abstract: Within the framework of the Euler equations, a numerical study of the structure of a self-similar flow for various types of negative Mach reflection during diffraction of a shock wave by a wedge is performed. Along with the known modes of double and triple Mach reflection, a qualitatively new mode of negative Mach reflection with multiple three-shock configurations is observed. Peculiarities of the transition from multiple Mach reflection to regular reflection when changing the wedge angle are noted.

Keywords: shock wave, three-shock configuration, double Mach reflection, negative Mach reflection.

Received: 28.05.2021
Revised: 02.07.2021
Accepted: 05.07.2021

DOI: 10.21883/PJTF.2021.20.51606.18889

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