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Department of Mathematical Sciences

Seminar Archives

On this page you can find information about seminars in this and previous academic years, where available on the database.

Numerical Analysis Seminars: Phase separation of a binary fluid in shear

Presented by Suzanne Fielding, Durham University

5 March 2010 14:15 in CM105

We study numerically phase separation in a binary fluid subject to an applied shear flow in two dimensions, with full hydrodynamics. For systems with inertia, we reproduce the nonequilibrium steady states reported previously by Stansell et al. [Phys Rev Lett 96 085701 (2006)]. 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. [SMF Phys Rev E 77 021504 (2008)]

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