Modeling of ferrofluid-based microvalves in the magnetic field created by a current-carrying wire

被引：4

作者：

Vinogradova, A. S. ^{[1
]}

Turkov, V. A. ^{[1
]}

Naletova, V. A. ^{[1
]}

机构：

[1] Lomonosov Moscow State Univ, Moscow 119991, Russia

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2019年 / 470卷

关键词：

Ferrofluid; Microfluidics; Valve; Magnetic field; Wire; LINE CONDUCTOR; MICROPUMP; DRIVEN;

D O I：

10.1016/j.jmmm.2017.11.090

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The paper deals with a ferrofluid-based valve which can open and close the channel formed by two coaxial cones and a cylinder in the magnetic field of a straight current-carrying wire. Numerical modeling of the ferrofluid valve behaviour for different values of ferrofluid volume, pressure drop and current in the wire is done when the ferrofluid wets surrounding solid boundaries. It is shown that the presence of limiting cones allows the ferrofluid valve to sustain a pressure drop at high enough currents. The maximum pressure drop and the needed current can be obtained for each possible ferrofluid volume. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：18 / 21

页数：4

共 18 条

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