| On the applicability of Young-Laplace equation for nanoscale liquid drops |
| Yan H ; Wei J; Cui SW; Xu SH(徐升华); Sun ZW(孙祉伟); Zhu, RZ; Zhu, RZ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China.; Zhu, RZ (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China.
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| 发表期刊 | RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A
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| 2016
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| 卷号 | 90期号:3页码:635-640 |
| ISSN | 0036-0244
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| 摘要 | Debates continue on the applicability of the Young-Laplace equation for droplets, vapor bubbles and gas bubbles in nanoscale. It is more meaningful to find the error range of the Young-Laplace equation in nanoscale instead of making the judgement of its applicability. To do this, for seven liquid argon drops (containing 800, 1000, 1200, 1400, 1600, 1800, or 2000 particles, respectively) at T = 78 K we determined the radius of surface of tension R (s) and the corresponding surface tension gamma (s) by molecular dynamics simulation based on the expressions of R (s) and gamma (s) in terms of the pressure distribution for droplets. Compared with the two-phase pressure difference directly obtained by MD simulation, the results show that the absolute values of relative error of two-phase pressure difference given by the Young-Laplace equation are between 0.0008 and 0.027, and the surface tension of the argon droplet increases with increasing radius of surface of tension, which supports that the Tolman length of Lennard-Jones droplets is positive and that Lennard-Jones vapor bubbles is negative. Besides, the logic error in the deduction of the expressions of the radius and the surface tension of surface of tension, and in terms of the pressure distribution for liquid drops in a certain literature is corrected. |
| 关键词 | Liquid Drop
Surface Tension
Surface Of Tension
Young-laplace Equation
Molecular Dynamics Simulation
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| DOI | 10.1134/S0036024416030158
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| URL | 查看原文
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| 收录类别 | SCI
; EI
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| 语种 | 英语
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| WOS记录号 | WOS:000370798400021
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| 关键词[WOS] | FINITE REYNOLDS-NUMBER
; POISEUILLE FLOW
; EQUILIBRIUM POSITIONS
; MICROFLUIDIC DEVICES
; PARTICLE SEPARATION
; RIGID SPHERE
; TUBE FLOW
; MIGRATION
; MOTION
; FORCE
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| WOS研究方向 | Chemistry
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| WOS类目 | Chemistry, Physical
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| 项目资助者 | This work was supported by the National Natural Science Foundation of China (grant nos. 11072242 and 11032011) and University Teaching Reform Project of Shanxi Province (Grant no. J2013105).
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| 课题组名称 | NML复杂流体
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| 力学所作者排名 | False
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/58664
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| 专题 | 微重力重点实验室
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| 通讯作者 | Zhu, RZ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China.; Zhu, RZ (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China. |
推荐引用方式
GB/T 7714 |
Yan H,Wei J,Cui SW,et al. On the applicability of Young-Laplace equation for nanoscale liquid drops[J]. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A,2016,90,3,:635-640.
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| APA |
Yan H.,Wei J.,Cui SW.,徐升华.,孙祉伟.,...&Zhu, RZ .(2016).On the applicability of Young-Laplace equation for nanoscale liquid drops.RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A,90(3),635-640.
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| MLA |
Yan H,et al."On the applicability of Young-Laplace equation for nanoscale liquid drops".RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 90.3(2016):635-640.
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