一种界面上的振荡现象——盐水振荡  

A Kind of Oscillation Phenomena on Interface——Saline Oscillation

作　　者：周永贤[1] 贺占博[1] 

机构地区：[1]天津大学理学院,天津300072

出　　处：《化学工业与工程》2004年第2期117-120,共4页Chemical Industry and Engineering

摘　　要：将盛有盐水溶液、底部有小孔的内套管垂直放入盛有蒸馏水的外套管中,小孔处可以观察到流体上下振荡,这种现象被称为盐水振荡。本文详细地介绍盐水振荡的现象、机理和数学模型,分析化学振荡产生的必要条件,提出盐水振荡是在浓度差引起的重力作用下,灵敏初条件被破坏,产生流体振荡,流动电势引发盐水振荡的电现象。通过对三种穿过界面扩散所形成的振荡现象———液膜振荡、固体膜振荡与盐水振荡进行比较,提出将三种振荡有机结合,可改进化学振荡器的性能和应用前景。An oscillatory flow of water is generated when a cup,with a small orifice in its bottom,and filled with saline water,is placed within an out vessel containing distilled water.The phenomena,the mechanism and the mathematical model are discussed,we brought forward that because of the gravity function and the original delicacy condition destroyed,the flow is taking place,and when the liquid flows up and down,the mobile phase of the double layer is carried along causing charge separation and the voltage is observed.By comparison between liquid membrane oscillator,artificial membrane oscillator and saline oscillator,some new opinions of the application are given.

关 键 词：液膜振荡 固体膜振荡 盐水振荡 非线性动力学 

分 类 号：O646[理学—物理化学]