The Effect of Asymmetrical Electric Double Layer on Pressure of Hydrodynamic Lubricating Film

被引：1
|
作者：
Zuo, Qiyang [1 ]
Huang, Ping [1 ]
Gyimah, Glenn Kwabena [1 ]
机构：
[1] S China Univ Technol, Sch Mech & Automot Engn, Guangzhou 510640, Peoples R China
来源：
BIOTECHNOLOGY, CHEMICAL AND MATERIALS ENGINEERING, PTS 1-3 | 2012年 / 393-395卷
关键词：
electric double layer; hydrodynamic lubrication; pressure distribution;
D O I：
10.4028/www.scientific.net/AMR.393-395.1536
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
In this paper, the effect of the asymmetrical electric double layers of two friction surfaces on the pressure distribution in hydrodynamic lubrication regime is discussed. Based on the origin of the streaming potential, a formula to calculate the streaming potential gradient in the lubrication regime is derived. Then, the modified Reynolds equation with considering the asymmetrical electric double layers is used in the numerical analysis. The analysis results show that the asymmetrical electric double layers lead to a significant increase of the pressure when the lubricating film is very thin (below 100 nm). Overall, the larger the sum of the two zeta potentials, the larger the pressure increment is.
引用
收藏
页码：1536 / 1540
页数：5
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