Resolution of differences between collision number definitions in particle and continuum simulations
- 1 September 1991
- journal article
- Published by AIP Publishing in Physics of Fluids A: Fluid Dynamics
- Vol. 3 (9) , 2282-2284
- https://doi.org/10.1063/1.857964
Abstract
The use of the same symbol, Z, representing a ‘‘collision number’’ for thermal relaxation, has lead to confusion regarding its definition in the context of both continuum and particle simulations. Examination of the relaxation mechanics employed in particle simulations demonstrates that these definitions differ by a numerical factor that depends upon the intermolecular potential. Particle and continuum simulations employing appropriate definitions of Z lead to identical results during isothermal and adiabatic stationary relaxation.Keywords
This publication has 1 reference indexed in Scilit:
- Statistical collision model for Monte Carlo simulation of polyatomic gas mixtureJournal of Computational Physics, 1975