振动诱导液滴与液面不融合现象的研究  

Research on the noncoalescing phenomenon between drops and vibrating liquid surface

作　　者：车适[1] 陈天然[1] 张志博[1] 赵地[1] 苏为宁[1] 潘永华[1] 高惠滨[1] 

机构地区：[1]南京大学物理学院,江苏南京210093

出　　处：《大学物理》2012年第6期60-65,共6页College Physics

基　　金：国家基础科学人才培养基金资助项目(0204G088);江苏高校优势学科建设工程资助项目

摘　　要：发现硅油液滴能够停留在竖直振动的硅油液面上,通过等厚干涉实验说明液滴和液面间存在空气薄膜,分析空气膜形状的变化过程,并依此建立简化模型论述空气膜阻止液滴与液面融合的原理.实验构造了浸没在硅油液面下的硅油液滴,建立理论模型估算空气膜的平均厚度,并与实验估测值对比.本文对多个液滴在液面上呼吸模式的振动现象作了描述和解释.The phenomenon that silicon oil drops stay on the vibrating liquid surface is found.Experiment of equal thickness interference indicates the existent of air film.Based on the analysis of the air film＇s transformation,a simplified model is proposed to explain how the air film inhibited the coalescing of drops and liquid surface.Drops underneath the liquid surface are observed and theoretical model is founded to calculate the thickness of air films,which is also compared with the experimental value.The paper also describes and explains the breath-mode vibrating phenomenon of multiple drops.

关 键 词：液滴 液面 竖直振动 不融合 空气膜 

分 类 号：O552.421[理学—热学与物质分子运动论]