Evolution of the continuous interface between gases of different density during the passage of a shock wave
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The evolution of the interface between gases of different density following the passage of a shock wave has been experimentally investigated. It is shown that replacing the discontinuous change of density on the wavy contact discontinuity by a continuous change in a layer of finite thickness leads to a reduction in the amplitude growth rate in the initial stage of development of Richtmyer—Meshkov instability. The experimentally determined values of the amplitude growth rate reduction factor are satisfactorily described by a model to be found in the literature.
KeywordsGrowth Rate Shock Wave Fluid Dynamics Rate Reduction Reduction Factor
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- 2.E. E. Meshkov, “Instability of the interface between two gases following shock-wave acceleration,”Izv. Akad. Nauk SSSR, Mekh. Zhidk. Gaza, No. 5, 151 (1969).Google Scholar
- 3.B. Sturtevant, “Rayleigh—Taylor instability in compressible fluids,” in:Proc. of the 16th Int. Symp. on Shock Tubes and Shock Waves, Wendheim, Fed. Rep. Germany: USH (1988), p. 89.Google Scholar
- 4.A. N. Aleshin, V. V. Demchenko, S. G. Zaitsev, and E. V. Lazareva, “Interaction between a shock front and a wavy contact discontinuity,”Izv. Ross. Akad. Nauk SSSR, Mekh. Zhidk. Gaza, No. 5, 158 (1992).Google Scholar
- 5.S. Chandrasekhar,Hydrodynamic and Hydromagnetic Stability, Oxford (1961), p. 428.Google Scholar
- 6.M. Brouillette and B. Sturtevant, “Richtmyer—Meshkov instability at a continuous interface,” in:Proc. of the 17th Int. Symp. on Shock Tubes and Shock Waves, Wendheim, 1989, New York (1990), p. 284.Google Scholar
- 8.G. A. Bird, “The motion of a shock-wave through a region of non-uniform density,”J. Fluid Mech.,11, No. 2 (1961).Google Scholar
- 9.V. B. Rozanov, I. G. Lebo, S. G. Zaitsev,et al., “Experimental investigation of the gravitational instability and turbulent mixing of stratified flows in an acceleration field in connection with problems of inertial thermonucleosynthesis,” Preprint No. 56 [in Russian], P. N. Lebedev Physics Institute, USSR Academy of Sciences, Moscow (1990), p. 6.Google Scholar