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| 表面应力调制的微流控技术的驱动原理 | |
| 引用本文： | Sandra M.Troian,郑旭,李战华,朱克勤.表面应力调制的微流控技术的驱动原理[J].力学进展,2007,37(1):113-129. |
| 作者姓名： | Sandra M.Troian 郑旭 李战华 朱克勤 |
| 作者单位： | 1. School of Engineering and Applied Science,Princeton University,Princeton,New Jersey 08544,USA 2. 中国科学院力学研究所 3. 清华大学工程力学系 |
| 摘 要： | 发展和优化对薄膜、液滴和气泡进行流动控制操作的多功能装置, 要求深入了解界面现象和微流体动力学流动.表面积/
体积的大比值和低雷诺数流动是此类系统的特点.毛细数和Bond数强烈地受边界效应影响, 因而可以通过各种表面处理和表面力
来进行控制.本文综述了运用调制法向或切向应力, 对均匀的、带化学处理条纹及拓扑结构纹理表面上的微滴和液膜进行驱动
的常用技术的基本原理. |
| 关 键 词： | 微流控技术 Marangoni应力 热毛细流 纹理表面 微滴驱动 微结构化流动 |
| 收稿时间： | 2006-08-28 |
| 修稿时间： | 2006-08-28 |
Principles of microfluidic a ctuation by modulation of surface stresses |
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| Anton A.Darhuber,Sandra M.Troian.Principles of microfluidic a ctuation by modulation of surface stresses[J].Advances in Mechanics,2007,37(1):113-129. | |
| Authors: | Anton ADarhuber Sandra MTroian |
| Institution: | School of Engineering and Applied Science, Princeton University, Princeton, New Jersey 08544, USA |
| Abstract: | Development and optimization of multifunctional devices for fluidic manipulation of films, drops, and bubbles require detailed understanding of interfacial phenomena and microhydroodynamic flows. Systems are distinguished by a large suface to volume ratio and flow at small Reynolds, capillary, and Bond numbers are strongly influenced by boundary effects and therefore amenable to control by a variety of surface treatments and surface forces. We review the principles underying common techniques for actuation of droplets and films on homogeneous, chemically patterned, and topologically textured surfaces by modulation of normal or shear stresses. |
| Keywords: | microfluidecs Marangoni stress thermocapillary flow textured surfaces droplet actuation micro-patterned flow |
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