title: Stochastic hard-sphere dynamics for hydrodynamics of nonideal fluids.
abstract: A novel stochastic fluid model is proposed with a nonideal structure factor consistent with compressibility, and adjustable transport coefficients. This stochastic hard-sphere dynamics (SHSD) algorithm is a modification of the direct simulation Monte Carlo algorithm and has several computational advantages over event-driven hard-sphere molecular dynamics. Surprisingly, SHSD results in an equation of state and a pair correlation function identical to that of a deterministic Hamiltonian system of penetrable spheres interacting with linear core pair potentials. The fluctuating hydrodynamic behavior of the SHSD fluid is verified for the Brownian motion of a nanoparticle suspended in a compressible solvent.
authors.affiliation: Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-9900, USA.
authors.forename: Aleksandar
authors.initials: A
authors.lastname: Donev
authors.forename: Berni J
authors.initials: BJ
authors.lastname: Alder
authors.forename: Alejandro L
authors.initials: AL
authors.lastname: Garcia