Experimental investigations of steady-state oblique detonation waves generated around hypersonic projectiles

Jiro Kasahara; Takakage Arai; Akiko Matsuo; Nobutaka Akai; Kouki Takazawa

Experimental investigations of steady-state oblique detonation waves generated around hypersonic projectiles

Jiro Kasahara, Takakage Arai, Akiko Matsuo, Nobutaka Akai, Kouki Takazawa

Department of Mechanical Engineering

Research output: Contribution to conference › Paper › peer-review

5 Citations (Scopus)

Abstract

Five-mm-diameter projectiles, whose speed was beyond the Chapman-Jouguet (C-J) detonation speed, were fired into mixtures containing stoichiometric hydrogen-oxygen gases plus argon diluents. The flowfield around the projectile was visualized using a CCD camera. We measured the minimum normal velocity components of detonation waves around the projectiles and the effective curvature radius of a bow detonation wave near the projectile tip. From these experimental results we concluded that the steady-state C-J detonation wave is stabilized around a projectile when the effective curvature radius of the bow detonation wave is larger than 8.6 times of the detonation cell size.

Original language	English
Publication status	Published - 2001 Dec 1
Event	10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference 2001 - Kyoto, Japan Duration: 2001 Apr 24 → 2001 Apr 27

Other

Other	10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference 2001
Country/Territory	Japan
City	Kyoto
Period	01/4/24 → 01/4/27

ASJC Scopus subject areas

Space and Planetary Science
Aerospace Engineering
Control and Systems Engineering

Cite this

Experimental investigations of steady-state oblique detonation waves generated around hypersonic projectiles. / Kasahara, Jiro; Arai, Takakage; Matsuo, Akiko et al.
2001. Paper presented at 10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference 2001, Kyoto, Japan.

Research output: Contribution to conference › Paper › peer-review

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abstract = "Five-mm-diameter projectiles, whose speed was beyond the Chapman-Jouguet (C-J) detonation speed, were fired into mixtures containing stoichiometric hydrogen-oxygen gases plus argon diluents. The flowfield around the projectile was visualized using a CCD camera. We measured the minimum normal velocity components of detonation waves around the projectiles and the effective curvature radius of a bow detonation wave near the projectile tip. From these experimental results we concluded that the steady-state C-J detonation wave is stabilized around a projectile when the effective curvature radius of the bow detonation wave is larger than 8.6 times of the detonation cell size.",

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AU - Kasahara, Jiro

AU - Arai, Takakage

AU - Matsuo, Akiko

AU - Akai, Nobutaka

AU - Takazawa, Kouki

PY - 2001/12/1

Y1 - 2001/12/1

N2 - Five-mm-diameter projectiles, whose speed was beyond the Chapman-Jouguet (C-J) detonation speed, were fired into mixtures containing stoichiometric hydrogen-oxygen gases plus argon diluents. The flowfield around the projectile was visualized using a CCD camera. We measured the minimum normal velocity components of detonation waves around the projectiles and the effective curvature radius of a bow detonation wave near the projectile tip. From these experimental results we concluded that the steady-state C-J detonation wave is stabilized around a projectile when the effective curvature radius of the bow detonation wave is larger than 8.6 times of the detonation cell size.

AB - Five-mm-diameter projectiles, whose speed was beyond the Chapman-Jouguet (C-J) detonation speed, were fired into mixtures containing stoichiometric hydrogen-oxygen gases plus argon diluents. The flowfield around the projectile was visualized using a CCD camera. We measured the minimum normal velocity components of detonation waves around the projectiles and the effective curvature radius of a bow detonation wave near the projectile tip. From these experimental results we concluded that the steady-state C-J detonation wave is stabilized around a projectile when the effective curvature radius of the bow detonation wave is larger than 8.6 times of the detonation cell size.

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T2 - 10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference 2001

Y2 - 24 April 2001 through 27 April 2001

ER -

Experimental investigations of steady-state oblique detonation waves generated around hypersonic projectiles

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ASJC Scopus subject areas

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