大学生园地

平行板间薄液层的断裂过程的研究

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  • 南开大学物理科学学院,天津30071
杜凡( 1997—) ,女,河北张家口人,南开大学物理学院2016 级本科生.

收稿日期: 2018-02-10

  录用日期: 2018-05-30

  网络出版日期: 2019-01-17

基金资助

高等学校教学研究项目( DWJZW201702hb) 及国家基础科学人才培养基金( J1210027) 资助

Study of the stable state and breakage of the liquid between two parallel flat plates

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  • School of Physics,Nankai University,Tianjin 30071,China

Received date: 2018-02-10

  Accepted date: 2018-05-30

  Online published: 2019-01-17

摘要

液体在相互靠近的固体之间会形成液桥结构,并对与其粘连的固体施以相互靠近的拉力,液桥的形态与稳定性受

到固体结构、固液性质、温度等诸多因素的影响.本文运用能量变分的方法求解稳定状态下的液桥形态,从而准确计算静止或

准静态条件下液体与相连固体间的作用力,进而以玻璃板间的薄水层为例,探究了大面积液桥的快速断裂过程,对液体出现

分形结构、指进现象、急速非均匀收缩的机理进行分析.

本文引用格式

杜凡, 陈宗强, 陈靖, 余华, 刘松芬, 曹学伟 . 平行板间薄液层的断裂过程的研究[J]. 大学物理, 2018 , 37(12) : 44 . DOI: 10.16854 /j.cnki.1000-0712.180092

Abstract

The liquid forms into liquid bridges between bodies which are close to each other,and tends to pull

the bodies to get nearer. The structure and stability of the liquid bridge are mainly determined by the structure of

solid,the characters of liquid and solid,as well as the temperature. The energy variation method is used to figure out

the stable state of the liquid bridge,which allows the force between liquid and solid to be accurately calculated,under

both static and quasi-static circumstance. Taking thin liquid structure between glass plates for instance,the fast

breakage process of large area liquid bridges are discussed,and fractal phenomenon,fingering phenomenon and inhomogeneous

shrink in this process are analyzed. The liquid bridges have significant effects on micro electro mechanical

system and bio-adhesion.

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