中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
On the applicability of Young-Laplace equation for nanoscale liquid drops

文献类型:期刊论文

作者Yan H; Wei J; Cui SW; Xu SH(徐升华); Sun ZW(孙祉伟); Zhu, RZ
刊名RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A
出版日期2016
卷号90期号:3页码:635-640
通讯作者邮箱zhurz@lnm.imech.ac.cn
关键词liquid drop surface tension surface of tension Young-Laplace equation molecular dynamics simulation
ISSN号0036-0244
产权排序[Yan, Hong] Changzhi Univ, Dept Elect Informat & Phys, Changzhi 046011, Peoples R China; [Yan, Hong; Zhu, Ruzeng] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China; [Wei, Jiuan] Adv Semicond Mat ASM Technol Singapore, 2 Yishun Ave 7, Singapore 768924, Singapore; [Cui, Shuwen] Cangzhou Normal Univ, Dept Phys & Elect Informat, Cangzhou 061000, Peoples R China; [Xu, Shenghua; Sun, Zhiwei; Zhu, Ruzeng] Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China
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.
中文摘要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.
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]FINITE REYNOLDS-NUMBER ; POISEUILLE FLOW ; EQUILIBRIUM POSITIONS ; MICROFLUIDIC DEVICES ; PARTICLE SEPARATION ; RIGID SPHERE ; TUBE FLOW ; MIGRATION ; MOTION ; FORCE
收录类别SCI ; EI
原文出处http://dx.doi.org/10.1134/S0036024416030158
语种英语
WOS记录号WOS:000370798400021
源URL[http://dspace.imech.ac.cn/handle/311007/58664]  
专题力学研究所_国家微重力实验室
推荐引用方式
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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.
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.
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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来源:力学研究所

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