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International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN Print: 2152-5102
ISSN Online: 2152-5110

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v30.i4.70
19 pages

Thermal Dispersion and Dissipation of a Sound in Concentrated Dispersion Liquid and Liquid-Gas Media

Valery Oliynik
Institute of Hydromechanics of National Academy of Sciences of Ukraine

ABSTRACT

On the basis of classical model of emulsion developed by M. A. Isakovich the physical and mathematical models of forming of acoustical properties of emulsions, bubble media, and aerosols are worked out with allowance for local thermal interaction of their microstructural elements. It is shown that model by Isakovich can be regarded as a limiting case of the model accounting for microstructural interaction, which describes the bubble medium. A numerical analysis demonstrates that at small and moderate interspaces between the grains of emulsion the model, accounting for thermal interaction, displays much better correlation with general physical interpretation of low-frequency sound propagation in dispersed mixtures than classical one, considering the microstructural elements to be independent.


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