Vol. 34, issue 06, article # 9

Arkhipov V. A., Basalaev S. A., Zolotorev N. N., Perfilieva K. G., Usanina A. S. New methods for studying the evaporation rate of liquid-drop aerosols. // Optika Atmosfery i Okeana. 2021. V. 34. No. 06. P. . DOI: 10.15372/AOO20210609 [in Russian].
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Abstract:

Results of experimental studies of the common factors of evaporation of a single drop and a cluster of liquid drops are presented. New method for determining the evaporation rate of a single drop at radiant flux heating of a given intensity is suggested. The effect of radiant and convective flux heating on the evaporation dynamics of a single motionless drop is analyzed. The effect of absorption coefficient of the liquid on the evaporation rate of the single drop at radiant heating is found. A new method and experimental setup are developed for studying the evaporation dynamics of a cluster of monodisperse liquid drops during their gravitational settling in a high-temperature gaseous medium. Specific features of the evaporation of clusters moving in a high-temperature gaseous medium are studied. It is shown that the evaporation rate of a cluster depends on number and initial concentration of drops in it.

Keywords:

single drop, cluster of drops, radiant heat flux, convective heat flux, high-temperature gaseous medium, evaporation rate, experimental study

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