Slip boundary conditions based on molecular kinetic theory: The critical shear stress and the energy dissipation at the liquid-solid interface
文献类型：期刊论文
| 作者 | Wang FC(王奉超) ; Zhao YP(赵亚溥)
|
| 刊名 | Soft Matter
 |
| 出版日期 | 2011 |
| 卷号 | 7期号:18页码:8628-8634 |
| 通讯作者邮箱 | yzhao@imech.ac.cn |
| 关键词 | Fast Water Transport Carbon Nanotubes Dependent Friction Surfaces Flow Dynamics |
| ISSN号 | 1744-683X |
| 产权排序 | [Wang, Feng-Chao; Zhao, Ya-Pu] Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China |
| 通讯作者 | Zhao, YP (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China |
| 中文摘要 | The boundary slip and its mechanism were investigated using theoretical analysis and molecular dynamic simulations. We proposed a new slip boundary condition based on molecular kinetic theory, which was extended by the introduction of the critical shear stress, which determines the onset of the slip, and the energy dissipation near the liquid-solid interface at high shear stress. Our results revealed that the critical shear stress increases exponentially with the liquid-solid interactions. In particular, we discussed the energy dissipation contributed from the friction between the liquid layers near the interface. The results demonstrated that the momentum transfer among the liquid layers and the bulk liquid must be considered according to the wetting conditions of the solid surface, which can interpret the contradictory published results of slip behavior at high shear stress. The analytical expression of our slip boundary condition can be compared with the simulation results since it uses parameters consistent with that used in our molecular dynamic simulations. Furthermore, we suggested a dimensionless number to qualify the transition from Poiseuille-like to plug-like flow in the carbon nanotubes. These findings can enhance our understanding of the boundary slip. |
| 学科主题 | Chemistry; Materials Science; Physics; Polymer Science |
| 分类号 | 一类 |
| 类目[WOS] | Chemistry, Physical ; Materials Science, Multidisciplinary ; Physics, Multidisciplinary ; Polymer Science |
| 研究领域[WOS] | Chemistry ; Materials Science ; Physics ; Polymer Science |
| 关键词[WOS] | FAST WATER TRANSPORT ; CARBON NANOTUBES ; DEPENDENT FRICTION ; SURFACES ; FLOW ; DYNAMICS |
| 收录类别 | SCI ; EI |
| 资助信息 | This work was jointly supported by the National Basic Research Program of China (973 Program, Grant No. 2007CB310500), the National Natural Science Foundation of China (NSFC, Grant Nos. 60936001 and 11072244) and the Shanghai Supercomputer Center. |
| 原文出处 | http://dx.doi.org/10.1039/c1sm05543g |
| 语种 | 英语 |
| WOS记录号 | WOS:000294447600094 |
| 公开日期 | 2012-04-01 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/44951]  |
| 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 | Wang FC,Zhao YP. Slip boundary conditions based on molecular kinetic theory: The critical shear stress and the energy dissipation at the liquid-solid interface[J]. Soft Matter,2011,7(18):8628-8634. |
| APA | 王奉超,&赵亚溥.(2011).Slip boundary conditions based on molecular kinetic theory: The critical shear stress and the energy dissipation at the liquid-solid interface.Soft Matter,7(18),8628-8634. |
| MLA | 王奉超,et al."Slip boundary conditions based on molecular kinetic theory: The critical shear stress and the energy dissipation at the liquid-solid interface".Soft Matter 7.18(2011):8628-8634. |
入库方式： OAI收割
来源：力学研究所
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