Electronic Resource
New York, NY
:
American Institute of Physics (AIP)
Physics of Fluids
1 (1989), S. 380-383
ISSN:
1089-7666
Source:
AIP Digital Archive
Topics:
Physics
Notes:
A kinetic model for a dilute multicomponent gas system is proposed. It is constructed by replacing the Boltzmann collision operator with a relaxation-time term, in the same manner as in the Bhatnagar–Gross–Krook (BGK) model for a single gas. The model contains several parameters that are determined by keeping some of the main properties of the Boltzmann description. In contrast to previous works, the BGK equation is recovered when mechanically identical particles are considered. Thus the model can be expected to apply to systems in which masses are comparable. The transport properties to the Navier–Stokes level are studied and Onsager's reciprocal relations are found to hold.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.857458
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