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

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (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 languageEnglish
Title of host publication10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference
Publication statusPublished - 2001
Event10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference 2001 - Kyoto, Japan
Duration: 2001 Apr 242001 Apr 27

Other

Other10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference 2001
CountryJapan
CityKyoto
Period01/4/2401/4/27

Fingerprint

detonation waves
hypersonics
Hypersonic aerodynamics
Detonation
Projectiles
projectiles
curvature
bows
detonation
argon
diluents
radii
CCD cameras
hydrogen
oxygen
Argon
gas
Hydrogen
cells
Oxygen

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering
  • Control and Systems Engineering

Cite this

Kasahara, J., Arai, T., Matsuo, A., Akai, N., & Takazawa, K. (2001). Experimental investigations of steady-state oblique detonation waves generated around hypersonic projectiles. In 10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference

Experimental investigations of steady-state oblique detonation waves generated around hypersonic projectiles. / Kasahara, Jiro; Arai, Takakage; Matsuo, Akiko; Akai, Nobutaka; Takazawa, Kouki.

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kasahara, J, Arai, T, Matsuo, A, Akai, N & Takazawa, K 2001, Experimental investigations of steady-state oblique detonation waves generated around hypersonic projectiles. in 10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference. 10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference 2001, Kyoto, Japan, 01/4/24.
Kasahara J, Arai T, Matsuo A, Akai N, Takazawa K. Experimental investigations of steady-state oblique detonation waves generated around hypersonic projectiles. In 10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference. 2001
Kasahara, Jiro ; Arai, Takakage ; Matsuo, Akiko ; Akai, Nobutaka ; Takazawa, Kouki. / Experimental investigations of steady-state oblique detonation waves generated around hypersonic projectiles. 10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference. 2001.
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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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