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Heat Transfer Research
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ISSN Druckformat: 1064-2285
ISSN Online: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v39.i4.20
pages 293-303

Droplet Heating and Evaporation: Hydrodynamic and Kinetic Models

Sergei S. Sazhin
Advanced Engineering Centre, School of Computing, Engineering and Mathematics, University of Brighton, Brighton, BN2 4GJ, UK
Irina N. Shishkova
Low Temperature Departments, Centre of High Technologies, Moscow Power Engineering Institute, Krasnokazarmennaya, 14, Moscow 111250, Russia
T. Kristyadi
Sir Harry Ricardo Laboratories, Internal Combustion Engines Group, Faculty of Science and Engineering, The University of Brighton, UK
Sergey Martynov
Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
Morgan R. Heikal
Advanced Engineering Centre, School of Computing, Engineering and Mathematics, University of Brighton, Brighton, BN2 4GJ, UK

ABSTRAKT

Recently developed approaches to the hydrodynamic modeling of liquid droplet heating and evaporation by convection and radiation from a surrounding hot gas are reviewed. The relatively small contribution of thermal radiation to droplet heating allows us to describe it using a simplified model, which does not consider the variation of radiation absorption inside the droplets. In the case of stationary droplets, a coupled solution of the heat conduction equation for gas and liquid phases is described. A kinetic model for droplet evaporation into a high-pressure background gas, approximated by air, is described. Two regions above the surface of the evaporating droplet are considered. These are the kinetic and hydrodynamic regions.


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