Bulletin of the American Physical Society
63rd Annual Meeting of the APS Division of Fluid Dynamics
Volume 55, Number 16
Sunday–Tuesday, November 21–23, 2010; Long Beach, California
Session DS: Invited Session: Particle Laden Viscous Fluids and the Gulf of Mexico Oilspill |
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Chair: Anette Peko Hosoi, Massachusetts Institute of Technology Room: Long Beach Convention Center Grand Ballroom A |
Sunday, November 21, 2010 3:30PM - 4:05PM |
DS.00001: Particle Laden Viscous Fluids and the Gulf of Mexico Oilspill Invited Speaker: The dynamics of particulates (e.g. sand) in viscous fluids is a complex process involving hindered settling dynamics and dynamics of the fluid such as shear. There is a renewed interest in understanding the dynamics of viscous fluids interacting with particulates due to the large volume of crude oil washing up on beaches in the Gulf of Mexico. I will address both modeling and mathematical challenges associated with this problem. Settling of particles in particle-oil mixtures on an incline can be quantitatively analyzed by a bifurcation that occurs between regimes of particle settling downstream of the flow and clear fluid separating out from the flow. An equilibrium theory compares shear-induced migration due to the bulk flow properties with hindered settling due to gravity, and matches well with laboratory experiments. I discuss current work on dynamic models for such particle-fluid mixtures and possible future work directed at understanding the formation of different classes of oil deposits on beaches in the Gulf. [Preview Abstract] |
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