流体黏度对固液界面滑移的影响  

Influence of Fluid Viscosity on Boundary Slip between Solid and Liquid

作　　者：王小云[1] 吴利华[1] 唐艳芳[1] 

机构地区：[1]吉首大学物理与机电工程学院,湖南吉首416000

出　　处：《淮阴师范学院学报（自然科学版）》2012年第2期154-157,共4页Journal of Huaiyin Teachers College;Natural Science Edition

基　　金：湖南省自然科学基金资助项目(09JJ6011;11JJ6007);湖南省教育厅基金资助项目(10A100;11C1057)

摘　　要：最初的滑移效应研究基于滑移长度模型和剪切应力模型,但都未涉及流体黏度变化条件下的滑移情况.本文基于滑移长度模型,理论推导出滑移长度随流体黏度及薄膜厚度的变化关系,并对滑移长度模型的流体阻力和压力进行修正,分析流体的滑移对其稳定性的影响.理论研究结果对固-液界面相关实验具有指导作用.The primary investigations on the slippage effect are based on the slip length model and shearing stress model, but they did not include the influence of viscosity. Based on the slip length model in this paper, a formula on the relations between the slip length and the viscosity of liquid or the thickness of film is obtained, and the hydrodynamic resistance force and the pressure are modified, the influence of boundary slip on the stability of thin film is analyzed. Our results will play a guiding role in the experiments of boundary slip between solid and liquid.

关 键 词：边界滑移 黏度 薄膜 

分 类 号：O484.2[理学—固体物理]