Focusing a shock wave; microscopic structure of the phenomenon

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Authors

  • Z.A. Walenta Institute of Fundamental Technological Research, Polish Academy of Sciences, Poland
  • J. Orzeński Institute of Fundamental Technological Research, Polish Academy of Sciences, Poland

Abstract

The problem of focusing a shock wave after its reflection from a concave wall is considered experimentally (in a shock tube) and numerically (employing the Direct Simulation Monte-Carlo technique). Rarefied flow conditions make it possible to clarify both the size of the focus and the structure of its neighbourhood.