Experimental and Numerical Study of Turbulent Mixing at the Contact Boundaries of Three-Dimensional Gas Systems
N. V. Nevmerzhitskii, A. N. Razin, E. D. Sen'kovskii, E. A. Sotskov, A. A. Nikulin, L. V. Tochilina, O. L. Krivonos, E. V. Shaporenko
Institute of Experimental Physics (VNIIEF), Sarov, 607188 Russia
Keywords: трехслойные газовые системы, неустойчивость Рихтмайера - Мешкова, турбулентное перемешивание, three-layer gas systems, Richtmyer-Meshkov instability, turbulent mixing
Abstract
This work presents the results of experimental and numerical studies on the process of turbulent mixing ocurring at the contact boundaries of three-layer gas systems during the passage of a stationary shock wave with a Mach number M ≈ 1.3. The experiments are carried out in an air shock tube. The working gases are air, F6, and He. The flow structure is recorded by a schlieren method with laser illumination. The data on the nature of turbulent mixing in two-dimensional flows are obtained.
DOI: http://dx.doi.org/10.1134/S0021894415020042
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