Abstract
The principles of and procedures for implementing direct simulation Monte Carlo
(DSMC) are described. Guidelines to inherent and external errors common in
DSMC applications are provided. Three applications of DSMC to transitional
and nonequilibrium flows are considered: rarefied atmospheric flows, growth of
thin films, and microsystems. Selected new, potentially important advances in
DSMC capabilities are described: Lagrangian DSMC, optimization on parallel
computers, and hybrid algorithms for computations in mixed flow regimes. Fi-
nally, the limitations of current computer technology for using DSMC to compute
low-speed, high–Knudsen-number flows are outlined as future challenges.
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