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| Approximate expression of Young's equation and molecular dynamics simulation for its applicability | |
Cui SW ; Wei JA; Liu WW; Zhu RC(朱如曾); Ping Q
| |
| Source Publication | CHINESE PHYSICS B
 |
| 2019 | |
| Volume | 28Issue:1Pages:AR16801 |
| ISSN | 1674-1056 |
| Abstract | In 1805, Thomas Young was the first to propose an equation (Young's equation) to predict the value of the equilibrium contact angle of a liquid on a solid. On the basis of our predecessors, we further clarify that the contact angle in Young's equation refers to the super-nano contact angle. Whether the equation is applicable to nanoscale systems remains an open question. Zhu et al. [College Phys. 47 (1985)] obtained the most simple and convenient approximate formula, known as the Zhu-Qian approximate formula of Young's equation. Here, using molecular dynamics simulation, we test its applicability for nanodrops. Molecular dynamics simulations are performed on argon liquid cylinders placed on a solid surface under a temperature of 90 K, using Lennard-Jones potentials for the interaction between liquid molecules and between a liquid molecule and a solid molecule with the variable coefficient of strength a. Eight values of a between 0.650 and 0.825 are used. By comparison of the super-nano contact angles obtained from molecular dynamics simulation and the Zhu-Qian approximate formula of Young's equation, we find that it is qualitatively applicable for nanoscale systems. |
| Keyword | molecular dynamics simulation Young's equation surface tension Zhu-Qian approximate formula of Young's equation |
| DOI | 10.1088/1674-1056/28/1/016801 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000456870700001 |
| WOS Keyword | LIQUID ; FLUID |
| WOS Research Area | Physics, Multidisciplinary |
| WOS Subject | Physics |
| Funding Organization | National Natural Science Foundation of China [11072242] ; Key Scientific Studies Program of Hebei Province Higher Education Institute, China [ZD2018301] ; Cangzhou National Science Foundation, China [177000001] |
| Classification | Q3 |
| Ranking | 1 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/78509 |
| Collection | 职能与支撑部门 |
| Affiliation | 1.{Cui, Shu-Wen、Liu, Wei-Wei} Cangzhou Normal Univ, Dept Phys & Informat Engn, Cangzhou 061001, Peoples R China 2.{Cui, Shu-Wen、Wei, Jiu-An、Zhu, Ru-Zeng} Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China 3.{Cui, Shu-Wen、Wei, Jiu-An、Zhu, Ru-Zeng} Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China 4.{Wei, Jiu-An} Silfex, Div Lam Res, 950 South Franklin St, Eaton, OH 45320 USA 5.{Ping, Qian} Univ Sci & Technol Beijing, Dept Phys, Beijing 100083, Peoples R China |
| Recommended Citation GB/T 7714 | Cui SW,Wei JA,Liu WW,et al. Approximate expression of Young's equation and molecular dynamics simulation for its applicability[J]. CHINESE PHYSICS B,2019,28(1):AR16801. |
| APA | Cui SW,Wei JA,Liu WW,朱如曾,&Ping Q.(2019).Approximate expression of Young's equation and molecular dynamics simulation for its applicability.CHINESE PHYSICS B,28(1),AR16801. |
| MLA | Cui SW,et al."Approximate expression of Young's equation and molecular dynamics simulation for its applicability".CHINESE PHYSICS B 28.1(2019):AR16801. |
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