Movement and evolution of macromolecules in a grooved micro-channel
文献类型：期刊论文
| 作者 | Zhou LW(周吕文); Liu MB(刘谋斌) ; Chang JZ; Liu MB(刘谋斌)
|
| 刊名 | INTERACTION AND MULTISCALE MECHANICS
 |
| 出版日期 | 2013-06 |
| 卷号 | 6期号:2页码:157-172 |
| 通讯作者邮箱 | liumoubin@imech.ac.cn |
| 关键词 | dissipative particle dynamics macromolecular suspension grooved micro-channel |
| ISSN号 | 1976-0426 |
| 产权排序 | [Zhou L.W.;Liu M.B.] Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China; [Chang J.Z.] School of Mechatronic Engineering, North University of China, Taiyuan 030051, China |
| 通讯作者 | 刘谋斌 |
| 合作状况 | 国内 |
| 中文摘要 | This paper presented an investigation of macromolecular suspension in a grooved channel by using the dissipative particle dynamics (DPD) with finitely extensible non-linear elastic (FENE) bead spring chains model. Before studying the movement and evolution of macromolecules, the DPD method was first validated by modeling the simple fluid flow in the grooved channel. For both simple fluid flow and macromolecular suspension, the flow fields were analyzed in detail. It is found that the structure of the grooved channel with sudden contraction and expansion strongly affects the velocity distribution. As the width of the channel reduces, the horizontal velocity increases simultaneously. Vortices can also be found at the top and bottom corners behind the contraction section. For macromolecular suspension, the macromolecular chains influence velocity and density distribution rather than the temperature and pressure. Macromolecules tend to drag simple fluid particles, reducing the velocity with density and velocity fluctuations. Particle trajectories and evolution of macromolecular conformation were investigated. The structure of the grooved channel with sudden contraction and expansion significantly influence the evolution of macromolecular conformation, while macromolecules display adaptivity to adjust their own conformation and angle to suit the structure so as to pass the channel smoothly. |
| 学科主题 | 交叉与边缘领域的力学 |
| 原文出处 | http://dx.doi.org/10.12989/imm.2013.6.2.157 |
| 语种 | 英语 |
| 公开日期 | 2014-03-04 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/48302]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 通讯作者 | Liu MB(刘谋斌) |
| 推荐引用方式 GB/T 7714 | Zhou LW,Liu MB,Chang JZ,et al. Movement and evolution of macromolecules in a grooved micro-channel[J]. INTERACTION AND MULTISCALE MECHANICS,2013,6(2):157-172. |
| APA | Zhou LW,Liu MB,Chang JZ,&刘谋斌.(2013).Movement and evolution of macromolecules in a grooved micro-channel.INTERACTION AND MULTISCALE MECHANICS,6(2),157-172. |
| MLA | Zhou LW,et al."Movement and evolution of macromolecules in a grooved micro-channel".INTERACTION AND MULTISCALE MECHANICS 6.2(2013):157-172. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。