Cell size dependence of transport coefficients in stochastic particle algorithms
- 1 June 1998
- journal article
- Published by AIP Publishing in Physics of Fluids
- Vol. 10 (6) , 1540-1542
- https://doi.org/10.1063/1.869674
Abstract
Using the Green–Kubo theory, the dependence of the viscosity and thermal conductivity on cell size is obtained explicitly for stochastic particle methods such as direct simulation Monte Carlo (DSMC) and its generalization, the consistent Boltzmann algorithm (CBA). These analytical results confirm empirical observations that significant errors occur when the cell dimensions are larger than a mean free path.Keywords
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