ON THE CRITERIA FOR DERIVING APPROXIMATIONS OF DIFFERENT ORDERS IN EXTENDED IRREVERSIBLE THERMODYNAMICS

被引：14

作者：

DELRIO, JA ^{[1
]}

DEHARO, PML ^{[1
]}

机构：

[1] UNIV NACL AUTONOMA MEXICO,INST INVEST MAT,ENERGIA SOLAR LAB,PRIV XOCHICALCO SN,TEMIXCO 62580,MORELOS,MEXICO

来源：

JOURNAL OF NON-EQUILIBRIUM THERMODYNAMICS | 1990年 / 15卷 / 01期

关键词：

D O I：

10.1515/jnet.1990.15.1.59

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The two criteria used for truncating expansions in the derivations made within extended irreversiblethermodynamics are discussed. For a dilute monoatomic gas, they lead to different relaxation equations for the noconcerved variables already at the Maxwell-Cattaneo level. A direct comparison with the results obtainedfrom the Boltzmann equation suggests that the criterion that assigns order according to the power of nonconserved variables should be preferred over the one that specifies the order with the number of spatial gradientoperators. Copyright © 1990 Walter de Gruyter.

引用

页码：59 / 72

页数：14

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