Experimental Investigation of a Turbulent Density Field Interacting with a Normal Shock Wave

  • H. Wintrich
  • W. Merzkirch
Conference paper

Abstract

The interaction of a normal shock wave with a compressible turbulent flow is studied experimentally by means of an optical speckle technique. The turbulence is generated by passing the air from the driver section of a shock tube through a turbulence grid. The experiments are aimed at minimizing or avoiding sources of possible errors that might have affected the measurements reported earlier by Keller and Merzkirch (1990). First results how a slight increase of turbulent length scales after the shock interaction and a definite amplification expressed by an increase of the energy spectrum amplitude.

Key words

Shock wave Turbulence Optical speckle method 

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References

  1. Erbeck R, Merzkirch W (1988) Speckle photographic measurement of turbulence in an air stream with fluctuating temperature. Exp. Fluids 6: 89–93Google Scholar
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Copyright information

© Springer-Verlag Berlin Heidelberg 1995

Authors and Affiliations

  • H. Wintrich
    • 1
  • W. Merzkirch
    • 1
  1. 1.Lehrstuhl für StrömungslehreUniversität EssenEssenGermany

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