Topic
Surface tension
About: Surface tension is a research topic. Over the lifetime, 25410 publications have been published within this topic receiving 695471 citations.
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TL;DR: In this article, a theory of homogeneous nucleation from the vapor phase is presented, which is based on an extension of Fisher's semiphenomenological droplet model for the Gibbs free energy of formation of a cluster.
Abstract: A theory of homogeneous nucleation from the vapor phase is presented, which is based on an extension of Fisher’s semiphenomenological droplet model for the Gibbs free energy of formation of a cluster. This droplet model allows translational, rotational, vibrational, and configurational degrees of freedom of the cluster as well as the variation of surface tension with cluster size. By suitable choice of the three free model parameters, known nucleation theories such as the classical Becker–Doring–Zeldovich theory and others are obtained as special cases. Since, however, an ansatz for the Gibbs free energy of formation allows the construction of an equation of state for real gases below the critical point, a new method of determining the model parameters is suggested, which is based on the idea of forcing the identity of the constructed equation of state with an experimentally verified one. Thus, all free model parameters can be determined purely from well‐known handbook properties. It is shown that the new theory gives a better prediction of observed nucleation rates than the classical one.
263 citations
TL;DR: In this article, an extensive series of glycerolmonoolein bilayer molecular dynamics simulations in which the surface area and system size were systematically changed have been conducted, covering length scales up to 20 nm.
Abstract: To understand the effect of the finite size of simulation cells on the equilibrium properties of bilayers, an extensive series of glycerolmonoolein bilayer molecular dynamics simulations in which the surface area and system size were systematically changed have been conducted. Systems ranging from 200 to 1800 lipids were simulated, covering length scales up to 20 nm. The dependence of the surface tension on the area per lipid is shown, although long simulation times were needed (up to 40 ns) to obtain reliable estimates. As the size of simulated patches increases, long wavelength undulatory modes appear with a concomitant increase in the area compressibility due to coupling of undulation modes to area fluctuations. Both the undulatory intensities and the peristaltic intensities of the bilayer fluctuations can be fitted in the long wavelength limit to continuum model predictions. The effect of system size on surface tension appears to depend on the stress conditions.
263 citations
TL;DR: In this article, a method for simulation of the time-dependent three-dimensional motion of liquid droplets on solid substrates for systems exhibiting finite equilibrium contact angles is introduced, where the contact angle is a prescribed function of position on the substrate.
261 citations
TL;DR: The proposed modified Poisson-Boltzmann (MPB) theory accurately predicts newly measured disjoining pressures of thin-liquid foam films stabilized by polyethylene oxide n-alkyl ether surfactants and explains the fascinating existence of a surface tension minimum in dilute electrolyte solutions, known as the Jones-Ray effect.
261 citations
TL;DR: In this paper, a simple coupled Volume of Fluid (VOF) with Level Set (LS) method was proposed and tested by comparison against a standard VOF solver and experimental observations.
261 citations