An atomistic-continuum hybrid simulation of fluid flows over superhydrophobic surfaces
文献类型：会议论文
| 作者 | He GW(何国威)
|
| 出版日期 | 2009 |
| 会议名称 | Conference on Advances in Microfluidics and Nanofluidics |
| 会议日期 | 2009 |
| 会议地点 | Hong Kong Univ Sci & Technol, Hong Kong, PEOPLES R CHINA |
| 通讯作者邮箱 | hgw@lnm.imech.ac.cn |
| 关键词 | Couette Flow Flow Simulation Molecular Dynamics Method Navier-Stokes Equations Boundary-Conditions Molecular-Dynamics Shear-Flow Solid Interface Slip Length Liquid Microchannels Velocimetry Roughness Friction |
| 通讯作者 | He GW |
| 中文摘要 | Recent experiments have found that slip length could be as large as on the order of 1 mu m for fluid flows over superhydrophobic surfaces. Superhydrophobic surfaces can be achieved by patterning roughness on hydrophobic surfaces. In the present paper an atomistic-continuum hybrid approach is developed to simulate the Couette flows over superhydrophobic surfaces in which a molecular dynamics simulation is used in a small region near the superhydrophobic surface where the continuum assumption is not valid and the Navier-Stokes equations are used in a large region for bulk flows where the continuum assumption does hold. These two descriptions are coupled using the dynamic coupling model in the overlap region to ensure momentum continuity. The hybrid simulation predicts a superhydrophobic state with large slip lengths which cannot be obtained by molecular dynamics simulation alone. |
| 收录类别 | CPCI(ISTP) |
| 会议录 | Biomicrofluidics
 |
| 会议录出版者 | Melville |
| 会议录出版地 | Amer Inst Physics |
| 语种 | 英语 |
| ISSN号 | 1932-1058 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/26747]  |
| 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 | He GW. An atomistic-continuum hybrid simulation of fluid flows over superhydrophobic surfaces[C]. 见:Conference on Advances in Microfluidics and Nanofluidics. Hong Kong Univ Sci & Technol, Hong Kong, PEOPLES R CHINA. 2009. |
入库方式： OAI收割
来源：力学研究所
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