Nonequilibrium kinetic temperatures in flowing gases

被引：31

作者：

Criado-Sancho, M

Jou, D ^{[1
]}

Casas-Vázquez, J

机构：

[1] Univ Autonoma Barcelona, Dept Fis, Bellaterra 08193, Catalonia, Spain

[2] Univ Nacl Educ Distancia, Fac Ciencias, Dept Ciencias & Tecn Fisicoquim, Madrid 28040, Spain

[3] Inst Estudis Catalans, Barcelona 08001, Catalonia, Spain

来源：

PHYSICS LETTERS A | 2006年 / 350卷 / 5-6期

关键词：

non-equilibrium temperature; entropy; information theory;

D O I：

10.1016/j.physleta.2005.10.043

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Kinetic non-equilibrium temperatures in the several spatial directions are obtained for a flowing ideal gas under a fixed shear pressure in the maximum-entropy formalism. Equipartition is not followed: temperatures along the directions of velocity and the velocity gradient are found to increase and the temperature in the remaining direction to decrease when the viscous pressure increases. These temperatures are compared to other non-equilibrium temperatures, defined from the internal energy, the entropy, and the fluctuation-dissipation theorem. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：339 / 341

页数：3

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