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Heat Transfer Research
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ISSN Imprimer: 1064-2285
ISSN En ligne: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v38.i4.10
pages 291-297

Detonation Wave Generated by a Hypervelocity Projectile

M.-O. Sturtzer
Institute of Fluid Science, Tohoku University, 2-1-1, Katahira, Aoba, Sendai
K. Togami
Mitsubishi Heavy Industry, Ltd., Nagoya Aerospace Systems 10, Oey-Cho, Minato-ku, Nagoya, 455-8515 Japan
S. Yamashita
Chugoku Kayaku Co., Ltd 5-1-1, Koyo, Ejima-Cho, Aki-ku, Hiroshima, 737-2121 Japan
K. Takayama
Shock Wave Research Center, Institute of Fluid Science, Tohoku University, Sendai, Japan

RÉSUMÉ

Recent experimental results on generation of oblique detonation waves over hypervelocity projectiles launched into detonable gaseous mixtures are reported. Eighty-degree-apex-angle-cone cylinders were launched at about 3 km/sec into an optical visualization chamber placed inside a 1.7-m diameter and 12-m long recovery chamber of a two-stage light gas gun at the Shock Wave Research Center. The visualization chamber was filled with reactive mixtures of hydrogen/oxygen and hydrogen/oxygen/nitrogen at various initial pressures. The detonation waves generated are observed with double exposure holographic interferometry and also sequentially recorded with a highspeed video camera capable of recording one hundred frames at one million frames per second. The result of observations clearly shows detonation waves and wakes behind high-speed projectiles. This is an experimental counterpart of the numerical result presently in progress in UTIAS, in which the detonation wave structure is going to be compared.


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