Inertial migrations of cylindrical particles in rectangular microchannels: Variations of equilibrium positions and equivalent diameters

Inertial migrations of cylindrical particles in rectangular microchannels: Variations of equilibrium positions and equivalent diameters
复制标题

矩形微通道中圆柱形颗粒的惯性迁移:平衡位置和当量直径的变化

DOI:
10.1063/1.5018714
复制
发表时间:
2018-03
期刊:
影响因子:
4.6
通讯作者:
Guoqing Hu
Guoqing Hu
中科院分区:
工程技术2区
文献类型:
--
作者:
Jinghong Su;Xiaodong Chen;Guoqing Hu

文献摘要

参考文献

被引文献

相似文献

惯性迁移已经成为操纵生物和工程颗粒的有效工具,这些颗粒通常以非球形形状存在于微流体装置中。关于球形颗粒的惯性迁移已经有了许多研究,而非球形颗粒在很大程度上仍然没有被探索。在这里,我们进行三维直接数值模拟研究的惯性迁移的刚性圆柱形颗粒在矩形微通道具有不同的宽度/高度比下的通道雷诺数(Re)从50到400变化。圆柱形颗粒具有不同的长度/直径比和阻塞比也被关注。表面力随旋转角的分布表明,作用在近壁面颗粒端部的表面应力是颗粒旋转的主要原因。我们得到了圆柱形颗粒在不同的横向位置所经历的两种类型的微通道在不同的温度下的横截面上的升力。
Inertial migration has emerged as an efficient tool for manipulating both biological and engineered particles that commonly exist with non-spherical shapes in microfluidic devices. There have been numerous studies on the inertial migration of spherical particles, whereas the non-spherical particles are still largely unexplored. Here, we conduct three-dimensional direct numerical simulations to study the inertial migration of rigid cylindrical particles in rectangular microchannels with different width/height ratios under the channel Reynolds numbers (Re) varying from 50 to 400. Cylindrical particles with different length/diameter ratios and blockage ratios are also concerned. Distributions of surface force with the change of rotation angle show that surface stresses acting on the particle end near the wall are the major contributors to the particle rotation. We obtain lift forces experienced by cylindrical particles at different lateral positions on cross sections of two types of microchannels at various ...
DOI: 10.1039/c002057e
发表时间: 2010-01-01
期刊: SOFT MATTER
影响因子: 3.4
作者:
Vigolo, Daniele;Rusconi, Roberto;Piazza, Roberto
通讯作者: Piazza, Roberto
DOI: 10.1063/1.4928917
发表时间: 2014-05
期刊: Physics of Fluids
影响因子: 4.6
作者:
Shih-Lin Huang;Shih-Di Chen;T. Pan;Chien-Cheng Chang;C. Chu
通讯作者: Shih-Lin Huang;Shih-Di Chen;T. Pan;Chien-Cheng Chang;C. Chu
DOI: 10.1002/elps.201000087
发表时间: 2010-08-01
期刊: ELECTROPHORESIS
影响因子: 2.9
作者:
Lewpiriyawong, Nuttawut;Yang, Chun;Lam, Yee Cheong
通讯作者: Lam, Yee Cheong
DOI: --
发表时间: --
期刊: --
影响因子: --
作者:
Yong‐Seok Choi;K. Seo;Sang-joon Lee
通讯作者: Yong‐Seok Choi;K. Seo;Sang-joon Lee
DOI: 10.1098/rspa.1923.0040
发表时间: 1923-04
期刊: Proceedings of The Royal Society A: Mathematical, Physical and Engineering Sciences
影响因子: --
作者:
G. Taylor
通讯作者: G. Taylor