Direct measurement of the apparent slip length

被引：251

作者：

Joseph, P ^{[1
]}

Tabeling, P ^{[1
]}

机构：

[1] Ecole Super Phys & Chim Ind Ville Paris, Lab MMN, CNRS, UMR 7083, F-75231 Paris, France

来源：

PHYSICAL REVIEW E | 2005年 / 71卷 / 03期

关键词：

D O I：

10.1103/PhysRevE.71.035303

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We measure velocity profiles in water flowing through thin microchannels, using particle image velocimetry combined with a nanopositioning system. From the velocity profiles, we determine the slip lengths in two cases: Smooth hydrophilic glass surfaces, and smooth hydrophobic glass surfaces, grafted with a monolayer of silane. The slip length is determined within (+/- 100 nm), i.e., five times more accurately than previous work. In all cases, we find that the slip length is below 100 nm.

引用

页数：4

共 31 条

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