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Detached shock waves around cylinders flying at mach number ranging from 1 to 2

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Abstract

Using a ballistic range with a small single-stage powder gun, characteristics of detached shock waves around cylindrical projectiles were investigated. The detaches shock waves were analyzed quantitatively by visualization method. The projectiles were made of steel, with a diameter of 5.56 mm and with a mass of 1.77 g. The projectiles were ejected into the test section of the ballistic range at supersonic speeds. Direction-indicating color schlieren method (DInCS) was used to visualize the flow field. The stand-off distance of the detached shock waves and the shape were obtained as the function of Mach number. The functions were compared with the results obtained by wind tunnel experiments. Analyzed images provided the quantitative information on shock shapes. The results were as follows: (1) the stand-off distances of the detached shock waves have been shown as exponential functions of Mach number; (2) the shapes of the shock waves have been found as quadratic functions of Mach number. The differences in the functions between this paper and a wind tunnel test were shown.

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Author notes

  1. Mizukaki T.

    Present address: Dept. of Aeronautics and Astronautics, School of Engineering, Tokai University, 1117, Kitakaname, Hiratsuka, 259-1292, Kanagawa, Japan

Authors and Affiliations

  1. The First Research Center, Technical Research and Development Institute, Japan Defense Agency, Naka-Meguro, Meguro, 153-8630, Tokyo, Japan

    Mizukaki T.

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  1. Mizukaki T.
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Correspondence to Mizukaki T..

Additional information

Toshiharu Mizukaki: He received his B Sc (Sc) in Physics in 1991 from Tokyo University of Science. Form 1991 to 1999, he worked in Japan Atomic Energy Agency (JAEA) as a scientist. He received his Ph.D. in Aerospace Engineering in 2001 from Tohoku University. He worked in NASA Langley Research Center as a visiting scientist in 2001, in Technical Research and Development Institute of Japan Defense Agency from 2002 to 2005, and in Department of Aerospace Engineering, Indian Institute of Science in 2005. He has been working in Department of Aeronautics and Astronautics, School of Engineering, Tokai University, as an associate professor since 2006. His research interests are Shock Waves, High-Speed Launch System, Flow Visualization and Laser-applied measurement Techniques.

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Mizukaki, T. Detached shock waves around cylinders flying at mach number ranging from 1 to 2. J Vis 11, 133–141 (2008). https://doi.org/10.1007/BF03181928

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  • DOI: https://doi.org/10.1007/BF03181928

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