Reassessing water slippage in hydrophobic nanostructures
文献类型：期刊论文
| 作者 | Zuo, Hong1,2,3; Javadpour, Farzam3; Deng, Shouchun1; Jiang, Xiaofang1,3; Li, Zhiwen1,3; Li, Haibo1
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| 刊名 | JOURNAL OF CHEMICAL PHYSICS
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| 出版日期 | 2020-11-21 |
| 卷号 | 153期号:19页码:8 |
| ISSN号 | 0021-9606 |
| DOI | 10.1063/5.0030758 |
| 英文摘要 | Reported data of measured slip lengths in nanostructures span several orders of magnitude, from a few nanometers to tens of micrometers. Small roughness on surfaces caused by structural defects or thermal fluctuations dramatically reduces slippage. Tiny bubbles entrapped on rough surfaces can also affect slippage. We used an asymptotic solution and a high density-ratio pseudopotential lattice Boltzmann model to systematically study the drag resistance of a rough surface with attached bubbles. As bubbles nucleate and grow, drag resistance is slightly reduced until the tri-phase contact line reaches the edges of roughness, where bubbles with small angles substantially reduce drag resistance. As bubbles grow to become a continuous gas layer on the surface, the drag resistance greatly decreases. However, the interface deformation from flat to curved shape greatly hinders liquid flow, and the vortex structures cause a wave-like fluctuation in the effective slip length. This finding sheds light on the controversies of reported large variations in the slip length of super-hydrophobic surfaces in nanostructures, e.g., carbon nanotubes. |
| 资助项目 | China Scholarship Council's (CSC) |
| WOS研究方向 | Chemistry ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000595280500001 |
| 出版者 | AMER INST PHYSICS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/25168]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Javadpour, Farzam |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Texas Austin, Jackson Sch Geosci, Bur Econ Geol, Box 10, Austin, TX 78713 USA |
| 推荐引用方式 GB/T 7714 | Zuo, Hong,Javadpour, Farzam,Deng, Shouchun,et al. Reassessing water slippage in hydrophobic nanostructures[J]. JOURNAL OF CHEMICAL PHYSICS,2020,153(19):8. |
| APA | Zuo, Hong,Javadpour, Farzam,Deng, Shouchun,Jiang, Xiaofang,Li, Zhiwen,&Li, Haibo.(2020).Reassessing water slippage in hydrophobic nanostructures.JOURNAL OF CHEMICAL PHYSICS,153(19),8. |
| MLA | Zuo, Hong,et al."Reassessing water slippage in hydrophobic nanostructures".JOURNAL OF CHEMICAL PHYSICS 153.19(2020):8. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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