Mean-Field-Scaling in Lattice Boltzmann Fluid Mixtures.
Mean-Field-Scaling in Lattice Boltzmann Fluid Mixtures.
(544 K)
Martys, N. S.; Douglas, J. F.
ASCE Engineering Mechanics Division Conference, 13th
Proceedings. American Society of Civil Engineers
(ASCE). June 13-16, 1999, Baltimore, MD, 1-6 pp, 1999.
Keywords:
critical phenomena; mean field theory; surface tension;
lattice Boltzmann; multiphase fluids; polymers
Abstract:
Basic equilibrium properties of Lattice Boltzmann (LB)
fluid mixtures (coexistence curve, surface tension, and
interfacial profile) are calculated to characterize the
critical phenomena occurring in these model liquids and
to establish a reduced variable description allowing a
comparison with real fluid mixtures. We observe
mean-field critical exponents and amplitudes so that the
LB model may be useful for modeling high molecular
weight polymer blends and other fluid mixtures that are
usually approximated over a wide temperature range by
mean-field theory.
Building and Fire Research Laboratory
National Institute of Standards and Technology
Gaithersburg, MD 20899