Shock Waves pp 1073-1078 | Cite as

Study on the effect of Mach number and initial amplitudes on the evolution of a single-mode shock-induced hydro-dynamic instability

  • O. Sadot
  • A. Rikanati
  • D. Oron
  • G. Ben-Dor
  • D. Shvarts
Conference paper


In the present study the Mach number and the high-initial amplitudes effects on the evolution of the single-mode shock wave induced instability were investigated. To distinguish between the above-mentioned effects, two sets of shock-tube experiments were conducted: high-initial amplitudes with a low-Mach incident shock; and small amplitude initial conditions with moderate-Mach incident shock. In the high-amplitude experiments a reduction of the initial velocity with respect to the linear prediction was measured. The results were compared to those predicted by a vorticity deposition model and to previous experiments with moderate and high Mach numbers done by others and good agreement was found. The result suggested that the high-initial amplitude effect is the dominant one rather then the high-Mach number effect as suggested by others. In the small amplitude-moderate Mach numbers experiments a reduction from the impulsive theory was noted at late stages.


Mach Number Incident Shock Initial Amplitude Schlieren Photograph Atwood Number 
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Copyright information

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • O. Sadot
    • 1
    • 2
  • A. Rikanati
    • 1
    • 3
  • D. Oron
    • 1
    • 4
  • G. Ben-Dor
    • 2
  • D. Shvarts
    • 1
    • 2
    • 3
  1. 1.Dept. of PhysicsNuclear Research Center NegevIsrael
  2. 2.Dept. of Mechanical EngineeringBen Gurion University of the NegevBeer-ShevaIsrael
  3. 3.Dept. of PhysicsBen Gurion University of the NegevBeer-ShevaIsrael
  4. 4.Dept. of Physics of Complex SystemsWeizmann Institute of ScienceRehovotIsrael

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