Monte Carlo simulation of hard-sphere colloid sedimentation on a hard wall
نویسنده
چکیده
The settling and packing properties of colloidal suspensions of large hard spheres in an effective gravitational field are investigated by a Monte Carlo constant-NPV simulation. The ratio of an effective gravitational potential to the repulsion/attraction potential in the hard sphere (G/ε) is a critical parameter that determines the surface coverage and packing properties of the system. The surface coverage, Θ, as well as the radial distribution function (RDF), g(r), are calculated at a hard wall for varying suspension volume fractions. Attractive hard spheres (ε < 0) agglomerate before sedimentation, causing Θ to be decreased.
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