Depletion force in a bidisperse granular layer.
作者： Paul Melby , Alexis Prevost , David A. Egolf , Jeffrey S. Urbach
DOI: 10.1103/PHYSREVE.76.051307
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摘要: We demonstrate the effect of depletion force in experiments and simulations vertically vibrated mixtures large small steel spheres. The system exhibits size segregation a increase pair correlation function spheres for short distances that can be accurately described using combination potential derived equilibrium colloidal systems Boltzmann factor. factor defines an effective temperature system, which we compare to other measures temperature.
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