COMPARISON BETWEEN THE BOLTZMANN AND BGK EQUATIONS FOR UNIFORM SHEAR-FLOW

被引：25

作者：

GARZO, V

SANTOS, A

机构：

[1] Departamento de Física, Universidad de Extremadura

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 1995年 / 213卷 / 03期

关键词：

D O I：

10.1016/0378-4371(94)00224-H

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The exact fourth-degree moments derived in the preceding paper from the Boltzmann equation for Maxwell molecules under uniform shear flow are compared with those obtained from the BGK and the Gaussian approximations. It is shown that the BGK results are closer to the exact ones than the Gaussian results. However, the deviations become significant as the shear rate increases.

引用

页码：426 / 434

页数：9

共 14 条

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