Evolution of Richtmyer-Meshkov instability with single-mode perturbation

Dong Jun Ma, De Jun Sun, Jeong Yeol Choi, Vigor Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The Richtmyer-Meshkov instability occurs when a perturbed interface between two fluids of different densities is impulsively accelerated by a shock wave. A major issue with the Richtmyer-Meshkov instability is the nonlinear growth of the interpenetrating mixing layer and ensuring turbulent mixing. The present paper represents a numerical investigation on the nonlinear evolution of the Richtmyer-Meshkov instability excited by a high-amplitude single-mode perturbation. The work simulates the Mach 1.15 shock tube experiment of Jourdan and Houas [Phys. Rev. Lett. 95, 204502, 2005]. An asymptotic analysis is also performed to provide more direct insight. Four different cases of air/SF 6, air/CO2, air/N2, and air/He are are studied, covering a wide range of Atwood numbers of -0.77∼0.6. A mixture-type interface capturing method, which can effectively avoid numerical oscillations on the interface discontinuities, is used to simulate the multi-fluid flows. The high-resolution Piecewise-Parabolic-Method (PPM) with a multi-fluid Riemann solver is employed to solve the proposed model equations. Calculated results show good agreement with experimental data and theoretical predictions.

Original languageEnglish
Title of host publication46th AIAA Aerospace Sciences Meeting and Exhibit
Publication statusPublished - 2008
Event46th AIAA Aerospace Sciences Meeting and Exhibit - Reno, NV, United States
Duration: 2008 Jan 72008 Jan 10

Publication series

Name46th AIAA Aerospace Sciences Meeting and Exhibit

Other

Other46th AIAA Aerospace Sciences Meeting and Exhibit
CountryUnited States
CityReno, NV
Period08-01-0708-01-10

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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