The effect of the interface length on the evaporation rate of a horizontal liquid layer under a gas flow
Yu.V. Lyulin1,2, O.A. Kabov2,3, G.V. Kuznetsov4, D.V. Feoktistov4, K.O. Ponomarev4
1Skolkovo Institute of Science and Technology, Moscow, Russia
2Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
3Novosibirsk State University, Novosibirsk, Russia
4Tomsk Polytechnic University, Tomsk, Russia
Keywords: испарение, конвекция, термокапиллярная граница раздела, двухфазные течения, evaporation, convection, thermocapillary interface, two-phase flows
Abstract
The dynamics of evaporation from the confined surface of a horizontal layer of liquid (ethanol) under the action of a gas (air) flow has been experimentally studied. The influence of the longitudinal dimension of the interface (0.01-0.03 m) on the specific mass rate of evaporation was studied. It was found that the specific mass evaporation rate decreases with an increase in the interface length due to a decrease in the vapor concentration gradient in the boundary layer.
|
