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Axial Dispersion via Shear-enhanced Diffusion in Colloidal Suspensions

Abstract:

The familiar example of Taylor dispersion of molecular solutes is extended to describe colloidal suspensions, where the fluctuations that contribute to dispersion arise from hydrodynamic interactions. The generic scheme is illustrated for a suspension of particles in a pressure-driven pipe flow, with a concentration-dependent diffusivity that captures both the shear-induced and Brownian contributions. Analytic and numerical solutions are presented that highlight the effect of the concentratio...

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Publication date:
2012-01-01
UUID:
uuid:ced64944-7af7-411c-aae9-410d504e89ab
Local pid:
oai:eprints.maths.ox.ac.uk:1483
Deposit date:
2012-03-03

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