A new lubrication equation for ultra-thin gas film in hard disk drives

被引：0
|
作者：
Peng, YQ [1 ]
Lu, XC [1 ]
Luo, JB [1 ]
机构：
[1] Tsing Hua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China
来源：
SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY | 2004年 / 47卷 / Suppl 1期
关键词：
nanoscale effect; gas film; flying height; Knudsen number; rarefied gas;
D O I：
10.1360/03yb0232
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
To overcome the complicated and time-consuming difficulties of current models, a new lubrication equation based on boundary velocity slip model for solving the ultra-thin film gas lubrication in hard disk drives is proposed by adopting the nanoscale effect function, N-p. The present model is easy to calculate and applicable at nanoscale. The results of numerical calculations indicate that the present model produces a close approximation to that of the exact Boltzmann model.
引用
收藏
页码：37 / 44
页数：8
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