Abstract
The properties of liquid threads in angular direction are studied. On the basis of Gibbs theory, a thermodynamic model is constructed and a formula of surface of tension is derived. For the determination of surface tension, different methods are presented. We investigate seven different systems (the numbers of molecules N are 1600, 2240, 2880, 3360, 4000, 4800, and 5280) by molecular dynamics simulations. We analyze the surface tension obtained by various routes, then whether the classical Laplace equation is applicable in nanoscale can be determined. The results obtained by molecular dynamics simulations support that surface tension is dependent on the dividing surface curvature.
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