2004•Ryuutai Kougaku Bumon Kouenkai kouen rombunshuu/Ryutai Kogaku Bumon Koenkai koen ronbunshuOpen access

Study of shock waves in compound-compressible flow through Lavel nozzles

Takanori Ushijima, Makiko YONAMINE, Yoshiaki Miyazato, Mitsuharu MASUDA, Hiroshi KATANODA, Kazuyasu MATSUO

Abstract

the characteristics of shock waves in compound-compressible flow through a Laval mozzle have been investigated experimentally by schlieren optical observations. As the results, it was found that when the Mach number just upstream of a compound shock wave is low, the shock in the mozzle becomens a mormal shock with compresson waves. On the other hand, when the Mach number is increased, it changes into a bifurcated shock wave with a normal shock wave.

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Key concepts: Shock wave, Mach number, Moving shock, Mach wave, Shock (circulatory), Oblique shock, Shock diamond, Compressible flow