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Thermophysics and Aeromechanics

2019 year, number 1

Effect of gas flow velocity on convection in a horizontal evaporating liquid layer

Yu.V. Lyulin1,2, A.S. Kreta2, O.A. Kabov2,3
1Skolkovo Institute of Science and Technology, Moscow, Russia
2Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
3Novosibirsk State University, Novosibirsk, Russia
Keywords: конвекция, термокапиллярная граница раздела, двухфазные течения, испарение, PIV-метод, convection, thermocapillary interface, two-phase flows, evaporation, PIV-method


The structure of convective flows in a horizontal evaporating layer of liquid (ethanol) was studied experimentally depending on the velocity of gas (air) flowing near the interface. Using the PIV method, we measured distribution of the two-dimensional velocity field and visualized the convective flows in a liquid layer. The existence of a vortex flow structure in an evaporating liquid layer, when the interface moves towards the gas flow, was proved.