Argon scattering off the surface of liquid indium: exit angle and energy dependence

Article Abstract:

Experiments were conducted to describe a theoretical and empirical investigation of argon scattering off the surface of liquid indium. Liquid indium is a liquid metal with a low melting point and low vapor pressure. The structure and dynamics of liquid-vapor interface were examined. In addition, the energy and angular distributions of the scattered argon atoms were also analyzed. A discrepancy between the simulation and experimental results were observed. However, the results provide insights on the gas-liquid energy-transfer processes.

Atomic spectra, Spectra, Argon, Indium, Scattering (Physics), Liquid metals

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Brownian motion of a rough sphere and the stokes-Einstein law

Article Abstract:

The effects of surface roughness of the solute on the resulting hydrodynamic boundary condition are analyzed referring to the Brownian limit. The results reveal that when the solute and solvent interact through a purely repulsive isotropic potential, in the Brownian limit the Stokes-Einstein law is satisfied with slip boundary conditions. It is also found that when surface roughness is introduced through an anisotropic solute-solvent interaction potential, the Stokes-Einstein law is satisfied with stick boundary conditions.

Chemistry, Physical and theoretical, Physical chemistry, Hydrodynamics, Surface roughness

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Effect of the wall on the velocity autocorrelation function and long-time tail of Brownian motion

Article Abstract:

Brownian motion of a particle situated near a wall boundign the fluid in which it is immersed is affected by the wall. Specifically it is assumed that an incompressible viscous fluid fills a half-space bounded by a plane wall and the fluid flow satisfies stick boundary conditions at wall.

Science & research, Fluid mechanics, Particle physics

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