Cellular structures of planar detonations with a detailed chemical reaction model

K. Inaba, Akiko Matsuo

研究成果: Conference contribution

2 引用 (Scopus)

抄録

Two-dimensional computations of unsteady gaseous detonations have been performed using a detailed chemical reaction model. Five cases are simulated to reveal the structure and propagation of stoichiometric hydrogen-air or hydrogen-oxygen-argon detonations: 2H2+ O2+ 3.76N2/3.76Ar at the initial pressures of 1.00, 0.421, and 0.132 atm. We examine the effects of channel width, initial pressure, and dilution and compare the results to the previous experimental data. Transverse wave strength determined by pressure ratio across the reflect shock is utilized for the evaluation of the transverse wave. With increasing the channel width, the transverse wave structure varies from the double Mach configuration to the complex double Mach configuration, and the transverse wave strength also increases. In hydrogen-air mixture at the initial pressure 1.00 and 0.421 atm, the strong transverse detonation, whose transverse wave strength is 1.5, propagates through the unreacted combustible mixture behind the incident shock. Our results indicate that an onset of the strong transverse detonation highly relates to the oscillation of the shock front and has a close relation to the second explosion limit of the gas mixture.

元の言語English
ホスト出版物のタイトル39th Aerospace Sciences Meeting and Exhibit
出版物ステータスPublished - 2001
イベント39th Aerospace Sciences Meeting and Exhibit 2001 - Reno, NV, United States
継続期間: 2001 1 82001 1 11

Other

Other39th Aerospace Sciences Meeting and Exhibit 2001
United States
Reno, NV
期間01/1/801/1/11

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transverse waves
Detonation
detonation
chemical reaction
Chemical reactions
chemical reactions
hydrogen
Hydrogen
Mach number
shock
pressure ratio
air
shock fronts
argon
Air
configurations
Gas mixtures
Dilution
Explosions
gas mixtures

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

これを引用

Inaba, K., & Matsuo, A. (2001). Cellular structures of planar detonations with a detailed chemical reaction model. : 39th Aerospace Sciences Meeting and Exhibit

Cellular structures of planar detonations with a detailed chemical reaction model. / Inaba, K.; Matsuo, Akiko.

39th Aerospace Sciences Meeting and Exhibit. 2001.

研究成果: Conference contribution

Inaba, K & Matsuo, A 2001, Cellular structures of planar detonations with a detailed chemical reaction model. : 39th Aerospace Sciences Meeting and Exhibit. 39th Aerospace Sciences Meeting and Exhibit 2001, Reno, NV, United States, 01/1/8.
Inaba K, Matsuo A. Cellular structures of planar detonations with a detailed chemical reaction model. : 39th Aerospace Sciences Meeting and Exhibit. 2001
Inaba, K. ; Matsuo, Akiko. / Cellular structures of planar detonations with a detailed chemical reaction model. 39th Aerospace Sciences Meeting and Exhibit. 2001.
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