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TVT, 2018, Volume 56, Issue 2, Pages 247–252 (Mi tvt10697)  

Heat and Mass Transfer and Physical Gasdynamics

Microwave heating of an emulsion drop

L. A. Kovaleva, A. A. Musin, Yu. I. Fatkhullina

Bashkir State University, Ufa

Abstract: The results of numerical modeling of the microwave heating of a water-in-oil emulsion drop in a gravity field with consideration of the empirical temperature dependence of the viscosity of the liquid surrounding the drop are presented. The system of thermal convection equations is considered in the Boussinesq approximation. The solution is obtained by the control volume method with the SIMPLE algorithm and by the VOF method. It is established that the emerging convective structures result in nonuniform heating of the drop predominantly near the surface, which can lead to a local rupture of the armor envelope and the formation of fine-dispersed phase. It is shown that there is an optimal range of power of microwave field in which an intensive deposition of water drops occurs, which leads to water-oil emulsion breakdown.

Funding Agency Grant Number
Ministry of Education and Science of the Russian Federation .1251.2014
‑9398.2016.1
Russian Foundation for Basic Research 14-01-97005
Skolkovo Institute of Science and Technology 700-MRA
This work was supported by the Ministry of Education and Science of the Russian Federation (project no. 3.1251.2014K), the President of the Russian Federation (grant no. MK-9398.2016.1), the Russian Foundation for Basic Research (project no. 14-01-97005), and Skolkovo Institute of Science and Technologies (project no. 700-MRA).


DOI: https://doi.org/10.7868/S0040364418020126

Full text: PDF file (301 kB)
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English version:
High Temperature, 2018, 56:2, 234–238

Bibliographic databases:

UDC: 536.331
Received: 29.04.2016
Accepted:08.11.2016

Citation: L. A. Kovaleva, A. A. Musin, Yu. I. Fatkhullina, “Microwave heating of an emulsion drop”, TVT, 56:2 (2018), 247–252; High Temperature, 56:2 (2018), 234–238

Citation in format AMSBIB
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