Commun. Comput. Phys., 11 (2012), pp. 1334-1346.


Supersonic Flows with Nontraditional Transport Described by Kinetic Methods

V. V. Aristov 1*, A. A. Frolova 1, S. A. Zabelok 1

1 Dorodnicyn Computing Center of Russian Academy of Sciences, Vavilova str. 40, Moscow, 119333, Russia.

Received 15 May 2010; Accepted (in revised version) 15 May 2011
Available online 30 November 2011
doi:10.4208/cicp.110510.150511s

Abstract

A new class of supersonic nonequilibrium flows is studied on the basis of solving the Boltzmann and model kinetic equations with the aim to consider new nonlinear structures in open systems and to study anomalous transfer properties in relaxation zones. The Unified Flow Solver is applied for numerical simulations. Simple gases and gases with inner degrees of freedom are considered. The experimental data related to the influence of the so-called optical lattices on the supersonic molecular beams are considered and numerical analysis of the nonequilibrium states obtained on this basis is made. The nonuniform relaxation problem with these distributions is simulated numerically and anomalous transport is confirmed. The conditions for strong changes of the temperature in the anomalous transfer zones are discussed and are realized in computations.


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PACS: 05.20.Dd, 47.45.Ab, 51.10.+y
Key words: The Boltzmann equation, anomalous transport, relaxation zones.

*Corresponding author.
Email: aristov@ccas.ru (V. V. Aristov), afrol@ccas.ru (A. A. Frolova), serge@ccas.ru (S. A. Zabelok)
 

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