液固界面滑移研究进展  

Research progress of slip on the liquid-solid interface

作　　者：郑旭[1] 李战华[1] ZHENG Xu;Zhanhua LI(The State Key Laboratory of Nonlinear Mechanics,Institute of Mechanics,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]中国科学院力学研究所非线性力学国家重点实验室,北京100190

出　　处：《实验流体力学》2020年第2期80-88,共9页Journal of Experiments in Fluid Mechanics

基　　金：国家自然科学基金(11572335,11672358)。

摘　　要：滑移边界条件是流体力学研究中一个悠久而重要的科学问题,在微纳流控研究中备受关注。近年来,对简单流体(如水)在光滑液固界面的滑移长度的量级逐渐取得共识,而对复杂流体在液固界面的滑移研究方兴未艾。本文综述了从简单流体扩展至复杂流体的研究过程中,滑移实验研究的新的测量结果以及理论描述方法。重点介绍了近期Charlaix教授课题组采用表面力仪测量高分子电解液的滑移结果,以从介观角度理解复杂流体在液固界面的滑移及其影响因素。Boundary slip is a long-standing scientific problem in the research of fluid mechanics,and is a highly attractive issue in micro/nanofluidics.Recently,the research community has gradually reached a consensus on the slip length of simple liquid(such as water)on smooth liquid-solid interface.However,the slip of complex fluids on liquid-solid interface has become an emerging and attractive issue.Therefore,this paper reviews the new experimental results and theoretical descriptions obtained in the research progress from the simple liquid to complex fluids.In particular,we mainly introduce how to understand the slip of complex fluids on the liquid-solid interface and its impacts,based on the recent experimental results in polyelectrolyte solutions from Prof.Charlaix’s group using surface force apparatus.

关 键 词：滑移 液固界面 复杂流体 微纳流控 表面力仪 黏弹性 

分 类 号：O35[理学—流体力学]