Liquid encapsulation in a freezing sessile drop
作者机构：Center for Combustion EnergyKey Laboratory for Thermal Science and Power Engineering of Ministry of EducationDepartment of Energy and Power EngineeringTsinghua UniversityBeijingChina Institut de Mécanique des Fluides de Toulouse(IMFT)Universitéde ToulouseCNRS‐ToulouseFrance Department of Engineering MechanicsSchool of Aerospace EngineeringTsinghua UniversityBeijingChina
出 版 物：《Droplet》 (液滴(英文))
年 卷 期：2023年第2卷第4期
页 面：120-126页
核心收录：
基 金：Natural Science Foundation of China,Grant/Award Numbers:11988102,91852202,11861131005 New Cornerstone Science Foundation China Postdoctoral Science Foundation,Grant/Award Numbers:2022T150068,2021M700507
主 题：solidification freezing outer
摘 要：During the solidification of a sessile drop,the effect of heat exchange from the gaseous environmental medium is generally ***,by combining experimental observations,direct numerical simulations,and a theoretical model,we have demonstrated that the environmental medium,particularly one with high thermal conductivity such as a liquid,has nonnegligible heat exchange with both the drop and the substrate,leading to accelerated cooling of the outer surface of the sessile ***,it causes alterations in the geometry of the freezing front and ultimately results in the formation of a solidified shell that encloses the ***,the encapsulated liquid continues to solidify,which induces volume change and consequently changes the final outcome of the freezing *** study highlights the importance of considering the properties of the environmental medium and provides novel strategies to manipulate the freezing rate and reshape the morphology of the solidified drop.
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