Transport phenomena in fluids: Finite-size scaling for critical behavior

Sutapa Roy and Subir K. Das^a

Theoretical Sciences Unit, Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur P.O., Bangalore 560064, India

^a das@jncasr.ac.in

Received: 18 November 2010
Accepted: 29 March 2011

Abstract

Results for transport properties, in conjunction with phase behavior and thermodynamics, are presented to understand the critical behavior of a binary Lennard-Jones fluid, on the basis of Monte Carlo and molecular dynamics simulations. Evidence for much stronger finite-size effects in dynamics compared to statics has been demonstrated. Results for bulk viscosity are the first in the literature where the critical divergence is quantified via a novel application of finite-size scaling. Our results are in accordance with the theoretical predictions of mode-coupling and dynamic renormalization group calculations.