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Abstract
The intermolecular collision scheme is developed to obtain an excellent result even if cells are lengthened (more than the local mean free path) in the direct simulation Monte Carlo (DSMC) calculation. In the new scheme, the velocity of one molecule of a collision pair is modified before and after the substantial collision calculation (the core of the collision calculation), assuming that velocity distributions in all flowfield are in local equilibrium with some temperature and flow velocity (local Maxwellian distribution). The new collision scheme is applied to three-dimensional supersonic free jets for a steady problem and a two-dimensional vortex shedding behind a flat plate for an unsteady problem, respectively, and its effect on them is confirmed.
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Schedule a callMore From: The Proceedings of the International Conference on Jets, Wakes and Separated Flows (ICJWSF)
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