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Chinese Academy of Sciences Institutional Repositories Grid
Tolman length of simple droplet: Theoretical study and molecular dynamics simulation*

文献类型:期刊论文

AuthorCui SW(崔树稳)4,5,6; Wei, Jiu-An3; Li, Qiang6; Liu, Wei-Wei6; Qian, Ping2; Wang, Xiao Song1
SourceCHINESE PHYSICS B
Issued Date2021
Volume30Issue:1Pages:6
KeywordTolman length surface tension radius of surface of tension radius of equimolecular surface molecular dynamics simulation
ISSN1674-1056
DOI10.1088/1674-1056/abb65a
Corresponding AuthorQian, Ping(qianping@ustb.edu.cn)
English AbstractIn 1949, Tolman found the relation between the surface tension and Tolman length, which determines the dimensional effect of the surface tension. Tolman length is the difference between the equimolar surface and the surface of tension. In recent years, the magnitude, expression, and sign of the Tolman length remain an open question. An incompressible and homogeneous liquid droplet model is proposed and the approximate expression and sign for Tolman length are derived in this paper. We obtain the relation between Tolman length and the radius of the surface of tension (R-s) and found that they increase with the R-s decreasing. The Tolman length of plane surface tends to zero. Taking argon for example, molecular dynamics simulation is carried out by using the Lennard-Jones (LJ) potential between atoms at a temperature of 90 K. Five simulated systems are used, with numbers of argon atoms being 10140, 10935, 11760, 13500, and 15360, respectively. By methods of theoretical study and molecular dynamics simulation, we find that the calculated value of Tolman length is more than zero, and it decreases as the size is increased among the whole size range. The value of surface tension increases with the radius of the surface of tension increasing, which is consistent with Tolman's theory. These conclusions are significant for studying the size dependence of the surface tension.
ClassificationQ3
Funding ProjectNational Key Research and Development Program of China[2016YFB0700500] ; Scientific Research and Innovation Team of Cangzhou Normal University, China[cxtdl1907] ; Key Scientific Study Program of Hebei Provincial Higher Education Institution, China[ZD2020410] ; Cangzhou Natural Science Foundation, China[197000001] ; General Scientific Research Fund Project of Cangzhou Normal University, China[xnjjl1906]
WOS KeywordSURFACE-TENSION ; FREE-ENERGY ; LIQUID ; NUCLEATION
WOS Research AreaPhysics
Language英语
WOS IDWOS:000607776600001
Funding OrganizationNational Key Research and Development Program of China ; Scientific Research and Innovation Team of Cangzhou Normal University, China ; Key Scientific Study Program of Hebei Provincial Higher Education Institution, China ; Cangzhou Natural Science Foundation, China ; General Scientific Research Fund Project of Cangzhou Normal University, China
Other responsibleQian, Ping
源URL[http://dspace.imech.ac.cn/handle/311007/85942]  
Collection力学研究所_非线性力学国家重点实验室
力学研究所_国家微重力实验室
Affiliation1.Henan Polytech Univ, Inst Mech & Power Engn, Jiaozuo 454003, Henan, Peoples R China
2.Univ Sci & Technol Beijing, Dept Phys, Beijing 100083, Peoples R China;
3.Silfex, 950 South Franklin St, Eaton, OH 45320 USA;
4.Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China;
5.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China;
6.Cangzhou Normal Univ, Dept Phys & Informat Engn, Cangzhou 061001, Peoples R China;
Recommended Citation
GB/T 7714
Cui SW,Wei, Jiu-An,Li, Qiang,et al. Tolman length of simple droplet: Theoretical study and molecular dynamics simulation*[J]. CHINESE PHYSICS B,2021,30(1):6.
APA 崔树稳,Wei, Jiu-An,Li, Qiang,Liu, Wei-Wei,Qian, Ping,&Wang, Xiao Song.(2021).Tolman length of simple droplet: Theoretical study and molecular dynamics simulation*.CHINESE PHYSICS B,30(1),6.
MLA 崔树稳,et al."Tolman length of simple droplet: Theoretical study and molecular dynamics simulation*".CHINESE PHYSICS B 30.1(2021):6.

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