February 9, 2000, 4.00 pm
Room 2-16, Maths Tower, Oxford Road
(Note the unusual venue!)
Particle size segregation,
shock waves and pattern
formation in rapid
granular flows
Dr. Nico Gray, Department of Mathematics, University of Manchester
Rapid shallow granular free surface flows occur when a surface layer
of static granular material becomes unstable or when granular material
is released by some mechanism onto an inclined surface. They are
abundant all around us from salt in a salt cellar and flow at the free
surface of stockpiles, to landslides, rock-falls, snow slab avalanches
and debris flows. Although the length scales vary dramatically the
dynamics of the avalanches are similar. A series of experiments that
illustrate the key physical processes are demonstrated and simple
mathematical models will be developed that capture some of the
features of these flows.
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For further info contact either Matthias
Heil (mheil@ma.man.ac.uk),
Mark Muldoon
(M.Muldoon@umist.ac.uk)or the seminar secretary (Tel. 0161 275 5800).
Page last modified: Februrary 2, 2000
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