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Size-dependent surface tension of a cylindrical nanobubble in liquid Ar
Yan H(闫红); Zhu RZ(朱如曾); Wei JA; Zhu RZ, Chinese Acad Sci, State Key Lab Nonlinear Mech LNM, Inst Mech, Beijing 100190, Peoples R China.
Source PublicationCHINESE PHYSICS B
2012-08-01
Volume21Issue:8Pages:083102
ISSN1674-1056
AbstractIn view of the continued disputes on the fundamental question of whether the surface tension of a vapour bubble in liquid argon increases, or decreases, or remains unchanged with the increase of curvature radius, a cylindrical vapour bubble of argon is studied by molecular dynamics simulation in this paper instead of spherical vapour bubble so as to reduce the statistical error. So far, the surface tension of the cylindrical vapour bubble has not been studied by molecular dynamics simulation in the literature. Our results show that the surface tension decreases with radius increasing. By fitting the Tolman equation with our data, the Tolman length delta = -0.6225 sigma is given under cut-off radius 2.5 sigma, where sigma = 0.3405 nm is the diameter of an argon atom. The Tolman length of Ar being negative is affirmed and the Tolman length of Ar being approximately zero given in the literature is negated, and it is pointed out that this error is attributed to the application of the inapplicable empirical equation of state and the neglect of the difference between surface tension and an equimolar surface.
KeywordCylindrical Nanobubble Surface Tension Tolman Length Molecular Dynamics Simulation Molecular-dynamics Nano-bubble Interface Water
Subject Area物理力学
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Indexed BySCI ; EI ; CSCD
Language英语
WOS IDWOS:000307501600022
Funding OrganizationProject supported by the National Natural Science Foundation of China (Grant No. 11072242).
Classification二类/Q2
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/46709
Collection非线性力学国家重点实验室
Corresponding AuthorZhu RZ, Chinese Acad Sci, State Key Lab Nonlinear Mech LNM, Inst Mech, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Yan H,Zhu RZ,Wei JA,et al. Size-dependent surface tension of a cylindrical nanobubble in liquid Ar[J]. CHINESE PHYSICS B,2012,21(8):083102.
APA Yan H,Zhu RZ,Wei JA,&Zhu RZ, Chinese Acad Sci, State Key Lab Nonlinear Mech LNM, Inst Mech, Beijing 100190, Peoples R China..(2012).Size-dependent surface tension of a cylindrical nanobubble in liquid Ar.CHINESE PHYSICS B,21(8),083102.
MLA Yan H,et al."Size-dependent surface tension of a cylindrical nanobubble in liquid Ar".CHINESE PHYSICS B 21.8(2012):083102.
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