XII International Conference on Computing Mechanics and Advanced Applied Codes

Structure of free supersonic jets studied by means of the Boltzmann equation

V. V. Aristov, S. A. Zabelok, A. A. Frolova

Dorodnitsyn Computing Centre of the Russian Academy of Sciences

Abstract: Different schemes for direct solving the Boltzmann equation are used. Parallel algorithms with multiprocessors technique are applied for free jet problems in a wide range of Knudsen numbers. The attention is focused on the study of mechanism of the transition to instability in a mixing layer. Vortices of the Goertler–Taylor type are appeared. At the supercritical regime the stochastic character of pulsation is confirmed for small kinetic scales of the step of time.

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