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Vibrational relaxation and sound absorption and dispersion in binary mixtures of gases

 

作者: Lawrence W. Townsend,   Willard E. Meador,  

 

期刊: The Journal of the Acoustical Society of America  （AIP Available online 1996）
卷期: Volume 99, issue 2  

页码: 920-925

 

ISSN:0001-4966

 

年代: 1996

 

DOI:10.1121/1.414619

 

出版商: Acoustical Society of America

 

关键词: ABSORPTION;BINARY MIXTURES;DISPERSION RELATIONS;GASES;REACTION KINETICS;ULTRASONIC WAVES;WAVE EQUATIONS;WAVE PROPAGATION

 

数据来源: AIP

 

摘要:

Reaction kinetics is used in concert with the usual gas species continuity and momentum equations to derive a pure wave equation for a single parameter (pressure or density). Solutions are obtained for sound absorption and dispersion in a binary mixture of gases which are equivalent to those derived from the phenomenological theory of irreversible thermodynamics. The methods are illustrated by comparison with acoustic measurements of vibrational relaxation in nitrogen–water vapor mixtures near room temperature.

 

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