Experimental Study of the Effect of Water Salinity on the Parameters of an Equilibrium Droplet Cluster Levitating over a Water Layer  

作　　者：Alexander A.Fedorets Eduard E.Kolmakov Leonid A.Dombrovsky 

机构地区：[1]Microhydrodynamic Technologies Laboratory,X-BIO Institute,University of Tyumen,Tyumen,625003,Russia [2]Heat Transfer Laboratory,Research Center of Physical and Thermal Engineering,Joint Institute for High Temperatures,Moscow,111116,Russia [3]Department of Chemical Engineering,Biotechnology and Materials,Engineering Science Faculty,Ariel University,Ariel,407000,Israel

出　　处：《Frontiers in Heat and Mass Transfer》2024年第1期1-14,共14页热量和质量传递前沿（英文）

基　　金：the Russian Science Foundation(Project No.24-29-00303)for the financial support of the present study.

摘　　要：New experimental results,which are important for the potential use of small levitating droplets as biochemical microreactors,are reported.It is shown that the combination of infrared heating and reduced evaporation of saline water under the droplet cluster is sufficient to produce equilibriumsaltwater droplets over a wide temperature range.The resulting universal dependence of droplet size on temperature simplifies the choice of optimal conditions for generating stable droplet clusters with droplets of the desired size.A physical analysis of the experimental results on the equilibrium size of saltwater droplets makes it possible to separate the effects related to the salinity of the water layer under the droplet cluster from the effects related to the reduction of water evaporation from the water droplets.This is expected to be important for further studies of heat transfer and diffusion in layers of evaporating solutions and condensed droplets.

关 键 词：Droplet cluster saltwater LEVITATION STABILIZATION heat transfer evaporation and condensation 

分 类 号：TH133[机械工程—机械制造及自动化]