TRANSPORT-COEFFICIENTS OF NONSPHERICAL HARD BODIES - A KINETIC-THEORY APPROACH

被引:16
|
作者
EVANS, GT [1 ]
机构
[1] OREGON STATE UNIV,DEPT CHEM,CORVALLIS,OR 97331
基金
美国国家科学基金会;
关键词
D O I
10.1080/00268979100102571
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A Mori-generalized Langevin method is applied to the calculation of the frequency dependent shear viscosity and ther-mal conductivity of a fluid of hand convex bodies (HCB's) in an uncorrelated collision (Enskog) approximation. The transport coefficients have a density dependence reminiscent of hard sphere (HS) systems. In the limit of a spherical HCB (for bodies with two rotational degrees of freedom), the shear viscosity of the fluid of HCB's reduces to the HS value, whereas the HCB thermal conductivity exceeds the HS value. Rotational energy contributions to the thermal conductivity (even to zeroth order in the particle asymmetry) are greatest at low densities and diminish with increasing density.
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页码:775 / 784
页数:10
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