Study on Performance of Detonation-Driven Shock Tube(Compressible Flow and Detonation)

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概要

• 論文の詳細を見る

• rights: 社団法人日本機械学会rights: 本文データは学協会の許諾に基づきCiNiiから複製したものであるrelation: IsVersionOf: http://ci.nii.ac.jp/naid/110003479056/A detonation-driven shock tube firstly designed by H.R. Yu is considered to be a useful apparatus for producing high-enthalpy flow. In this apparatus, a strong shock wave is generated by detonating an oxygen-hydrogen mixture (oxy-hydrogen) and the driver gas temperature and pressure are extremely high compared with those of a conventional shock tube. However, the structure of the detonation wave is not uniform, e.g., the detonation wave has three-dimensional cellular structures and multiple transverse waves. Furthermore, the detonation wave is followed by a Taylor expansion fan and the performance of detonation-driven shock tube is not well understood. In this preliminary study, a detonation-driven shock tube is constructed and its performance is experimentally investigated by measuring pressure histories and the profile of the ionization current behind the detonation wave. As a result, (i)the pressure history of the detonation wave is clarified and shows reasonable agreement with the result obtained by the KASIMIR shock tube simulation code. (ii) The propagation velocity of the detonation wave coincides well with the theoretical prediction assuming a Chapman-Jouguet detonation wave. (iii) The equivalence ratio of the oxy-hydrogen mixture to produce the highest Mach number of the shock wave is evaluated to be Φ≃1.7.

• 一般社団法人日本機械学会の論文
• 2002-05-15

著者

• OHYAGI Shigeharu

  Department of Mechanical Engineering, Saitama University

• Yamanaka Akio

  Graduate School Of Science And Engineering Saitama University

• ARIGA Yosuke

  Graduate School of Science and Engineering, Saitama University

• OBARA Tetsuro

  Department of Mechanical Engineering, Faculty of Engineering, Saitama University

• CAI Pin

  Department of Mechanical Engineering, Faculty of Engineering, Saitama University

• Ohyagi S

  Department Of Mechanical Engineering Saitama University

• Ohyagi Shigeharu

  Department Of Mechanical Engineering Faculty Of Engineering Saitma University

• Cai Pin

  Department Of Mechanical Engineering Faculty Of Engineering Saitama University

• Ariga Yosuke

  Graduate School Of Science And Engineering Saitama University

• Obara Tetsuro

  Department Of Mechanical Engineering Saitama University

• Obara Tetsuro

  Department Of Mechanical Engineering Faculty Of Engineering Saitama University

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