Evaporation of liquid microdroplets levitated above a solid surface heated below the saturation temperature

All-Russian Conference with the School for Young Scientists “Thermophysics and Physical Hydrodynamics –2016”

Kirichenko, D.P.^1,2 ; Zaitsev, D.V.^1 ; Kabov, O.A.^1

Kutateladze Institute of Thermophysics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia^1

Novosibirsk State University, Novosibirsk, Russia^2

关键词: Evaporation rate;    Levitated droplet;    Liquid microdroplets;    Saturation temperature;    Sessile droplet;    Solid surface;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/754/4/042008/pdf
DOI  :  10.1088/1742-6596/754/4/042008

来源: IOP

【 摘 要 】

This paper presents a study of the interaction of liquid microdroplets falling on a solid surface whose temperature is varied from 75 °C to 155 °C. It has been shown for the first time that droplet levitation above a solid surface is possible at a temperature below the saturation temperature. It has been found that for levitated droplets, the specific evaporation rate is constant in time, but for sessile droplets, it increases sharply. The evaporation rate for sessile droplet was found an order of magnitude higher than that for levitated droplets.