Monte Carlo Simulation for Surface Properties of Two-Yukawa Fluids

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The two-Yukawa (TY) potential is a newly developed potential function for fluids. The Monte Carlo method was used to simulate the potential energy, intermolecular forces, radial distribution function, density profile, surface thickness and surface tension for a TY fluid at different temperatures. The results for a TY fluid are compared to those for a Lennard-Jone fluid, which shows that the surface properties are more sensitive to the intermolecular potential than the bulk properties and the repulsive action with a shore range can also influence the surface properties.
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