Focusing of Converging Cylindrical Shock Wave.

  • Hosseini S. H. R.
    Shock Wave Research Center, Institute of Fluid Science, Tohoku University
  • Onodera O.
    Shock Wave Research Center, Institute of Fluid Science, Tohoku University
  • Takayama K.
    Shock Wave Research Center, Institute of Fluid Science, Tohoku University

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タイトル別名
  • Focusing of Converging Cylindrical Shoc

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In order to study the stability of converging cylindrical shock waves an annular vertical diaphragmless shock tube was designed and constructed. This shock tube has a self-sustained structure and produces cylindrical shock waves with a wide range of shock Mach numbers and a higher degree of repeatability. Double exposure holographic interferometry method was used for quantitative flow visualization. It is found that the cylindrical shock waves converge more uniformly in this vertical strut-free shock tube than in a former horizontal annular shock tube and behavior of the converging cylindrical shock waves is clarified.

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