FAST AND SLOW SOUND IN THE 2-TEMPERATURE MODEL

被引：6

作者：

SCHRAM, RPC

WEGDAM, GH

机构：

[1] Van der Waals-Zeeman Laboratory, University of Amsterdam, 1018XE Amsterdam

来源：

PHYSICA A | 1994年 / 203卷 / 01期

关键词：

D O I：

10.1016/0378-4371(94)90030-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The dispersion relation for disparate mass gas mixtures is derived from a simplified two-temperature model. It is shown that the hydrodynamic sound mode (kl-->0) goes over continuously into either a fast or a slow propagating sound mode (kl--> infinity), depending on the composition. The composition that demarcates the composition regions where the continuation of the hydrodynamic sound mode is a fast or slow propagating mode is called the critical composition. The existence of such a critical composition is confirmed experimentally by new Rayleigh-Brillouin experiments on H-2 + Xe mixtures.

引用

页码：33 / 52

页数：20

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