We propose a method to account for the long tail corrections of dispersive forces in inhomogeneous systems. This method deals separately with the two interfaces that are usually present in a simulation setup, effectively establishing semi-infinite boundary conditions that are appropriate for the study of the interface between two infinite bulk phases. Using the wandering interface method, we calculate surface free energies of vapor-liquid, wall-liquid, and wall-vapor interfaces for a model of Lennard-Jones argon adsorbed on solid carbon dioxide. The results are employed as input to Young's equation, and the wetting temperature located. This estimate is compared with predictions from the method of effective interface potentials and good agreement is found. Our results show that truncating Ar-Ar interactions at two and a half molecular diameters results in a dramatic decrease of the wetting temperature of about 40%.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1063/1.3692608 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Correlation Decoupling of Casimir Interaction in an Electrolyte Driven by External Electric Fields.
Phys Rev Lett
December 2024
School of Physical Sciences, University of Chinese Academy of Sciences (UCAS), Beijing 100049, China.
It is well established that the long-range van der Waals or thermal Casimir interaction between two semi-infinite dielectrics separated by a distance H is screened by an intervening electrolyte. Here we show how this interaction is modified when an electric field of strength E is applied parallel to the dielectric boundaries, leading to a nonequilibrium steady state with a current. The presence of the field induces a long-range thermal repulsive interaction, scaling just like the thermal Casimir interaction between dielectrics without the intervening electrolyte, i.
View Article and Find Full Text PDFA broadband modeling method for range-independent underwater acoustic channels using physics-informed neural networks.
J Acoust Soc Am
November 2024
Key Laboratory of Underwater Acoustic Signal Processing of Ministry of Education, Southeast University, Nanjing, 210096, China.
Accurate broadband modeling of underwater acoustic channels is vital for underwater acoustic detection, localization, and communication. Conventional modeling methodologies, based on methods such as the finite element method, finite difference method, and boundary element method, generally facilitate computation for only a single frequency at a time. However, in broadband modeling, this characteristic presents limitations, requiring multiple computations across frequencies, thereby leading to significant time challenges.
View Article and Find Full Text PDFThermal characterization of vertical interface by scanning photothermal radiometry.
Rev Sci Instrum
October 2024
University Grenoble Alpes, CNRS, Grenoble INP, G-SCOP, UMR 5272, F-38000 Grenoble, France.
In this work, scanning photothermal radiometry is used for imaging and to characterize a submicron crack. From the thermal images, the evolution of the crack is mapped in the space with micrometer resolution. A vertical contact interface at the steel-steel junction is used to represent a micro-crack with a thickness less than 0.
View Article and Find Full Text PDFA numerical approach applied to three-dimensional wave scattering problems subjected to obliquely propagating incident waves.
PLoS One
June 2024
College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, China.
Accurately modeling artificial boundary conditions and wave inputs is paramount for numerical simulations of wave scattering in semi-infinite domains within seismic engineering. Traditionally, analysts focused on one- or two-dimensional free-field problems to determine wave inputs, primarily for vertically incident plane waves or obliquely incident waves parallel to two axes. However, these methods were inadequate for handling arbitrary incident directions in three-dimensional scenarios.
View Article and Find Full Text PDFComparing the end correction of a spherically baffled piston to infinitely baffled and unbaffled circular radiators (L).
J Acoust Soc Am
May 2024
Sorbonne Université, CNRS, Jean le Rond d'Alembert, UMR 7190, 4 Place Jussieu, Paris 75005, France.
Models of acoustical systems commonly employ end corrections to represent the radiation impedance of a vibrating element. Although several analytic solutions appear in the literature, the end corrections of an infinitely baffled circular piston and an unbaffled semi-infinite circular pipe remain popular in modeling applications. This Letter compares the end correction of these two configurations to that of a radially vibrating cap on a sphere.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!