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Improved sampling techniques for the direct simulation Monte Carlo method

โœ Scribed by Quanhua Sun; Jing Fan; Iain D. Boyd

Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
637 KB
Volume
38
Category
Article
ISSN
0045-7930

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โœฆ Synopsis

The direct simulation Monte Carlo (DSMC) method is a widely used approach for flow simulations having rarefied or nonequilibrium effects. It involves heavily to sample instantaneous values from prescribed distributions using random numbers. In this note, we briefly review the sampling techniques typically employed in the DSMC method and present two techniques to speedup related sampling processes. One technique is very efficient for sampling geometric locations of new particles and the other is useful for the Larsen-Borgnakke energy distribution.

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