Direct Pressure Measurement of Imploding Detonation Waves.

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  • Ishii K.
    Department of Mechanical Engineering and Materials Science, Faculty of Engineering Yokohama National University
  • Tsuboi T.
    Department of Mechanical Engineering and Materials Science, Faculty of Engineering Yokohama National University
  • Takada H.
    Department of Mechanical Engineering and Materials Science, Faculty of Engineering Yokohama National University
  • Torikai Y.
    Department of Mechanical Engineering and Materials Science, Faculty of Engineering Yokohama National University
  • Nishizuka S.
    Department of Mechanical Engineering and Materials Science, Faculty of Engineering Yokohama National University

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  • Direct Pressure Measurement of Implodin

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Abstract

Pressure measurement at the center of imploding detonation waves was carried out using a piezofilm stress gauge (PVF2). From the present measurement, the maximum pressures averaged within 2 and 3 mm in radius from the geometric implosion center are almost proportional to the initial pressure;Pmax (r=2mm) = PO × 1. 2 × 104 and Pmax (r=3mm) = PO × 9. 0 × 103. The measured pressure is compared with estimated one based on the selfsimilar solution of imploding shock waves.

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