Dynamic spreading on pillar-arrayed surfaces: Viscous resistance versus molecular friction
文献类型：期刊论文
| 作者 | Yuan QZ(袁泉子) ; Huang XF(黄先富); Zhao YP(赵亚溥)
|
| 刊名 | PHYSICS OF FLUIDS
 |
| 出版日期 | 2014-09 |
| 卷号 | 26期号:9页码:92104 |
| 通讯作者邮箱 | yzhao@imech.ac.cn |
| ISSN号 | 1070-6631 |
| 产权排序 | [Yuan, Quanzi; Huang, Xianfu; Zhao, Ya-Pu] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
| 通讯作者 | Zhao, YP (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
| 合作状况 | 国内 |
| 中文摘要 | The dynamic spreading of a liquid droplet on micropillar-arrayed surfaces is experimentally investigated. A theoretical model is proposed to include energy dissipations raised from both the viscous resistance at mesoscale and the molecular friction at microscale in the triple-phase region. The scaling laws and spreading shape of the droplet change with the variation of the liquid viscosity because of the competition between these two mechanisms of energy dissipations at the moving contact line. The Laplace pressures at the interior corner and at the wavy contact line are the answers to the excess driving energy and the superwetting on pillar-arrayed surfaces. The formation and evolution of the bulk and the fringe are also analyzed in detail. Our results may help to understand the wetting dynamics on microtextured surfaces and assist the future design of engineered surfaces in practical applications. (C) 2014 AIP Publishing LLC. |
| 学科主题 | Mechanics; Physics |
| 分类号 | 一类/力学重要期刊 |
| 收录类别 | SCI ; EI |
| 资助信息 | This work was jointly supported by the National Natural Science Foundation of China (NSFC, Grant Nos. 11202213 and 11372313), the Key Research Program of the Chinese Academy of Sciences (Grant No. KJZD-EW-M01), and the Instrument Developing Project of the Chinese Academy of Sciences (Grant No. Y2010031). |
| 原文出处 | http://dx.doi.org/10.1063/1.4895497 |
| 语种 | 英语 |
| WOS记录号 | WOS:000342852400023 |
| 公开日期 | 2014-11-27 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/49318]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Yuan QZ,Huang XF,Zhao YP. Dynamic spreading on pillar-arrayed surfaces: Viscous resistance versus molecular friction[J]. PHYSICS OF FLUIDS,2014,26(9):92104. |
| APA | Yuan QZ,Huang XF,&Zhao YP.(2014).Dynamic spreading on pillar-arrayed surfaces: Viscous resistance versus molecular friction.PHYSICS OF FLUIDS,26(9),92104. |
| MLA | Yuan QZ,et al."Dynamic spreading on pillar-arrayed surfaces: Viscous resistance versus molecular friction".PHYSICS OF FLUIDS 26.9(2014):92104. |
入库方式： OAI收割
来源：力学研究所
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