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Heat Transfer Research
Fator do impacto: 0.404 FI de cinco anos: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Imprimir: 1064-2285
ISSN On-line: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v30.i7-8.20
pages 431-438

Acoustic Method for Determination of Accommodation Coefficient in Fogs

D. A. Gubaidullin
Institute of Mechanics and Machinery of the Russian Academy of Sciences, Kazan Branch of Moscow Power Engineering Institute, Kazan, Russia

RESUMO

A linear theory on the propagation of plane waves in polydispersed vapor gas drop mixtures is erected taking into account both non-stationary and non-equilibrium effects of the phase interaction. An effect of phase transformations is studied for the suspension as well as its polydispersive composition and governing parameters upon the pattern of the wave dispersion and dissipation in polydispersed air fogs. The comparison of the proposed theory with known experimental date on sound attenuation in air fogs is given. An analysis of the investigation on aerosol acoustics show that there is the possibility of principle for determination of accommodation coefficient that determines a part of molecules of vapor absorbed in surfaces of droplets.


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