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Shock Waves

, Volume 8, Issue 6, pp 337–349 | Cite as

Numerical and experimental study of a micro-blast wave generated by pulsed-laser beam focusing

  • Z. Jiang
  • K. Takayama
  • K.P.B. Moosad
  • O. Onodera
  • M. Sun

Abstract.

This paper describes a numerical and experimental study of a micro-blast wave which is produced from the source of several tens microns in dia. and propagates in the length scale of a few centimeter in diameter. The micro-blast wave was generated by focusing a Nd:Glass pulsed-laser beam in ambient air. Its propagation and reflection were visualized by using double exposure holographic interferometry and simulated numerically using the dispersion-controlled scheme to solve the Euler and Navier-Stokes equations with initial conditions of a point-source explosion specified with the Taylor similarity law. Good agreement was obtained between numerical solutions and experimental results, and this spherical micro-blast wave was shown to be a handy model of blast waves created in large scale explosions.

Key words:Micro-blast wave, Laser focusing, Numerical simulation, Flow visualization, Blast-wave reflection 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  • Z. Jiang
    • 1
  • K. Takayama
    • 1
  • K.P.B. Moosad
    • 2
  • O. Onodera
    • 1
  • M. Sun
    • 1
  1. 1. Shock Wave Research Center, Institute of Fluid Science, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-7785 Japan JP
  2. 2. Defence Science Center, Metcalfe House, Delhi-110054, India IN

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