Near-wall velocity of suspended particles in microchannel flow

被引：0

作者：

Hau, Winky L. W. ^{[1
]}

Liu, Zhenyu ^{[2
]}

Korvink, Jan ^{[2
]}

Zengerle, Roland ^{[1
,3
]}

Ducree, Jens ^{[1
,3
]}

机构：

[1] Univ Freiburg, Dept Microsyst Engn IMTEK, Lab MEMS Applicat, Georges Koehler Allee 106, D-79110 Freiburg, Germany

[2] Univ Freiburg, Dept Microsyst Engn IMTEK, Lab Simulat, D-79110 Freiburg, Germany

[3] HSG IMIT, D-78052 Villingen Schwenningen, Germany

来源：

MEMS 2008: 21ST IEEE INTERNATIONAL CONFERENCE ON MICRO ELECTRO MECHANICAL SYSTEMS, TECHNICAL DIGEST | 2008年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This contribution investigates the characteristic reduction of the particle velocity with respect to the velocity profile of a pure liquid (water) in a pressure driven flow (PDF). It is shown by simulations and experiments that particles are slowed down once their local perturbation "cloud" of the velocity field hits the wall. We show that this effect scales with the ratio of the distance of sphere's surface from the wall, delta, and the radius, a, of the sphere, i.e. delta/a.

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页码：633 / +

页数：2

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