Non-Linear Development of Interface Perturbations Under Joint Impulsive and Constant Accelerations

  • V. E. Neuvazhayev
  • I. E. Parshukov
Conference paper


The two-dimensional problem of the behavior of the interface between two ideal incompressible liquids in a gravitational field is studied on the basis of a vortex method. For the case of stationary (Rayleigh- Taylor instability) and impulsive (Richtmyer-Meshkov instability) accelerations and their joint action the method allows to determine some asymptotic laws of bubble and spike evolution in the non-linear stage for different values of the Atwood number. The applicability of the technique to the description of real gas-dynamic flows is shown and comparisons of calculated and experimental results (obtained in shock tubes) are given.

Key words

Interface insability Nonlinear effects Acceleration Vortex method 


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Copyright information

© Springer-Verlag Berlin Heidelberg 1995

Authors and Affiliations

  • V. E. Neuvazhayev
    • 1
  • I. E. Parshukov
    • 1
  1. 1.Institute of Technical PhysicsChelyabinsk-70Russia

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