Comment on “The viscoelastic response of Brownian suspensions” [J. Chem. Phys. 111, 8708 (1999)]

Abstract

It is pointed out that the pair cluster integral expression for the viscoelastic response of a Brownian suspension includes a factor g(σ), the radial distribution function at contact. It is suggested that in the comparison with the theory of Verberg et al. for the zero frequency response it should be taken into account that the pair dynamics of a hard sphere suspension without hydrodynamic interactions is approximately a factor g(σ) faster than in a suspension with hydrodynamic interactions.