Resolution of differences between collision number definitions in particle and continuum simulations

AIP Publishing - Tập 3 Số 9 - Trang 2282-2284 - 1991
Forrest Lumpkin1, Brian L. Haas2, Iain D. Boyd3
1NASA Ames Research Center Moffett Field, CA, United States
2Eloret Institute, Palo Alto, California 94303
3Eloret Institute Palo Alto, CA, United States

Tóm tắt

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.

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Tài liệu tham khảo

1936, Phys. Z. Sowjetunion, 10, 34

1975, J. Comput. Phys., 18, 405, 10.1016/0021-9991(75)90094-7