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Interfacial Phenomena and Heat Transfer

Выходит 4 номеров в год

ISSN Печать: 2169-2785

ISSN Онлайн: 2167-857X

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RELATION BETWEEN CONVECTIVE THERMAL PATTERNS AND HEAT FLUX THROUGH AN EVAPORATING SURFACE VIA TWO-DIMENSIONAL AND THREE-DIMENSIONAL NUMERICAL SIMULATIONS

Том 2, Выпуск 3, 2014, pp. 199-206
DOI: 10.1615/InterfacPhenomHeatTransfer.2015011481
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Краткое описание

It is the purpose of this paper to investigate the temporal behavior of convection flow, pattern formation, and heat flux through a liquid−gas interface for a pure liquid (HFE-7100) evaporating into a nitrogen gas flow. Two- and three-dimensional numerical fluid-dynamics simulations are performed using the software ComSol (finite elements method). This study is related to an experimental setup to be flown onboard the International Space Station (ESA "Evaporation Patterns" project). The two-dimensional results show that, due to the surface-tension variation with cooling, small rolls are formed near the liquid−gas interface, followed by the rolls growing into the bulk liquid, due to buoyancy. The three-dimensional results show that regular patterns are formed in the beginning accompanied by small fluctuations of the heat flux. Afterward, these patterns transform into chaotic flow and the fluctuations of the heat flux attenuate. Nonetheless, the heat flux fluctuations deviate only slightly from the mean value.

ЦИТИРОВАНО В
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  2. Kreta Aleksei, Zaitsev D.V., Kabov O.A., Convection flow study within a horizontal fluid layer under the action of gas flow, MATEC Web of Conferences, 84, 2016. Crossref

  3. Kreta Aleksei, Lyulin Yuriy, Kuznetsov G.V., Strizhak P.A., Zhdanova A.O., Thermographic investigation of surface temperature of the evaporating liquid layer under the action of gas flow, MATEC Web of Conferences, 92, 2017. Crossref

  4. Kreta Aleksei, Markovich D., Zaitsev D., Semenov A., Infrared study of surface of the HFE-7100 liquid evaporating into gas flow, EPJ Web of Conferences, 159, 2017. Crossref

  5. Machrafi H., Lyulin Y., Iorio C.S., Kabov O., Dauby P.C., Numerical parametric study of the evaporation rate of a liquid under a shear gas flow: Experimental validation and the importance of confinement on the convection cells and the evaporation rate, International Journal of Heat and Fluid Flow, 72, 2018. Crossref

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  7. Kreta Aleksei, Lyulin Yuriy, Kuznetsov G.V., Strizhak P.A., Bulba E.E., Zhdanova A.O., Convection Study by PIV Method Within Horizontal Liquid Layer Evaporating Into Inert Gas Flow, MATEC Web of Conferences, 72, 2016. Crossref

  8. Lyulin Yuriy, Kreta Aleksei, Ouerdane Henni, Kabov Oleg, Experimental Study of the Convective Motions by the PIV Technique within an Evaporating Liquid Layer into the Gas Flow, Microgravity Science and Technology, 32, 2, 2020. Crossref

  9. Lyulin Yu. V., Kreta A. S., Kabov O. A., Effect of gas flow velocity on convection in a horizontal evaporating liquid layer, Thermophysics and Aeromechanics, 26, 1, 2019. Crossref

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