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The application of the BGK model in particle simulations

Gallis, Michail A.; Torczynski, J.R.

A collision model for the Direct Simulation Monte Carlo (DSMC) method is presented. The collision model is based on the BGK equation and makes use of the Cercignani ellipsoidal distribution to incorporate the effects of heat conductivity. Results obtained by the DSMC method and its BGK and BGKC modifications for a 10° wedge and a flat plate are presented and discussed. © 2000 by Sandia Corporation.