Multiphase Hele-Shaw Flows: from Beaches to Dredgers

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• Onno Bokhove, Astro- & Geophysical Fluid Dynamics, University of Leeds
• Thursday 07 February 2013, 11:30-12:30
• Open Plan Area, BP Institute, Madingley Rise CB3 0EZ.

If you have a question about this talk, please contact Catherine Pearson.

Liquid-particle and air-particle interactions are investigated using a Hele-Shaw cell. Firstly, Hele-Shaw experiments with beach and berm formation under driven and breaking waves will be presented. The design of this Hele-Shaw beach cell is triggered by analysing width- and depth-averaged hydrodynamic equations, such that the minimal gap width necessary for sustained wave breaking can be determined. A posteriori, the design assumptions were also validated against simulations of sloshing water waves. The steady beach morphologies observed will be discussed, including wet and dry beaches, berm or island formation, and the emergence of sandbanks. Finally, some preliminary experiments and designs will be shown, including aolean, dry `dune’ formation driven by air flow through a nonuniform channel.

This talk is part of the Institute for Energy and Environmental Flows (IEEF) series.

This talk is included in these lists:

• All Talks (aka the CURE list)
• Cambridge Energy Seminars
• Department of Earth Sciences seminars
• Institute for Energy and Environmental Flows (IEEF)
• NanoDTC Energy Materials Talks
• Open Plan Area, BP Institute, Madingley Rise CB3 0EZ
• history
• ps635

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