Orientational dependence of the selfdiffusion tensor and relaxation time spectra for nematic phase of hard ellipsoid particles

Abstract

The tensors of friction coefficients and relaxation times are calculated in the Enskog approximation at fixed orientation of a target particle. The angular dependence of the latter makes possible to introduce the velocity relaxation time spectra. So the Enskog theory originally operating with a single relaxation time allows to incorporate the whole spectrum when the selfdiffusion coefficients are considered.