Spreading of a Multicomponent Drop in Water: Solutions and Suspensions  

作　　者：Andrey Y.Ilinykh 

机构地区：[1]Ishlinsky Institute for Problems in Mechanics of the Russian Academy of Sciences,Moscow,119526,Russia

出　　处：《Fluid Dynamics & Materials Processing》2020年第4期723-735,共13页流体力学与材料加工（英文）

基　　金：supported by the Russian Science Foundation(Project 19-19-00598“Hydrodynamics and energetics of drops and droplet jets:formation,motion,break-up,interaction with the contact surface,”).

摘　　要：The distribution of material resulting from the impact of a freely falling drop with a target liquid has been studied by photo and video registration methods.Different cases have been investigated by considering drops made of aqueous solutions(ink,salt,acid)and including fine solid particles(i.e.,suspensions).New features have been observed in terms of flow dynamics and thin components produced as a result of the impact(such as banded elements,ligaments,and vortices at the surface of the liquid).In particular,the characteristics of emerging netlike structures have been found to depend on the size of the suspension clusters.For the case of acetic acid,a different patterning behavior has been obtained:sequences of concentric arcs are produced in that case.However,linear scaling laws and the discrete nature of the distribution of the droplet material seem to be features common to all the cases considered.

关 键 词：Drop impact splashes LIGAMENTS material distribution 

分 类 号：O17[理学—数学]