Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2007-10-31
Physics
Condensed Matter
Statistical Mechanics
18 pages, 8 figures
Scientific paper
10.1103/PhysRevE.77.021504
We study numerically phase separation in a binary fluid subject to an applied shear flow in two dimensions, with full hydrodynamics. To do so, we introduce a mixed finite-differencing/spectral simulation technique, with a transformation to render trivial the implementation of Lees-Edwards sheared periodic boundary conditions. For systems with inertia, we reproduce the nonequilibrium steady states reported in a recent lattice Boltzmann study. The domain coarsening that would occur in zero shear is arrested by the applied shear flow, which restores a finite domain size set by the inverse shear rate. For inertialess systems, in contrast, we find no evidence of nonequilibrium steady states free of finite size effects: coarsening persists indefinitely until the typical domain size attains the system size, as in zero shear. We present an analytical argument that supports this observation, and that furthermore provides a possible explanation for a hitherto puzzling property of the nonequilibrium steady states with inertia.
No associations
LandOfFree
The need for inertia in nonequilibrium steady states of sheared binary fluids does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The need for inertia in nonequilibrium steady states of sheared binary fluids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The need for inertia in nonequilibrium steady states of sheared binary fluids will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-15008