IMA conference on dense granular flows

Workshop theme

Flows involving solid particulates are ubiquitous in nature and industry alike. Such flows are found in pharmaceutical production, the chemical industry, the food and agricultural industries, energy production and the environment. Many unsolved problems remain, however. For example, the rejection rate by US pharmaceutical manufacturers is around 5% with the cost of losing a single batch of medication ranging from £50,000 to £500,000. In order to be able to solve such problems, granular flows need to be understood so that their behaviour can be controlled and predicted.
To date, we are able to describe rapid granular flows, where the particles are highly agitated and there has been some success describing static systems. The intermediate regime, where these two phases meet and coexist, is not as well understood and yet is the most commonly observed behaviour of granular flow. The objective of this meeting was to interface the two ends of the particulate flow spectrum – those working to understand the fundamentals of granular flows and those attempting to control particulate flows in an industrial setting - to develop solutions to the complex problems presented by dense granular flows.
Themes were to include dense granular flow, biological systems, self-propelled particles and geological flows, exploring new developments in theoretical analysis and experimental techniques. Contributors were provided with an opportunity to present recent work and there will be substantial time for discussion, both during the workshop and during the evening! Postgraduate and PhD students were particularly welcomed and oral presentations reflected the breadth of the field.
This workshop followed on from the successful workshop held in January 2009 and the INI Granular and Particle Laden Flows programme hosted by the Isaac Newton Institute in 2003. The Isaac Newton Institute for Mathematical Sciences is a national and international visitor research institute. It runs research programmes on selected themes in mathematics and the mathematical sciences with applications over a wide range of science and technology. It attracts leading mathematical scientists from the UK and overseas to interact in research over an extended period.

Invited Speakers

Paulo Arratia (University of Pennsylvania)
Vicente Garzó (University of Extremadura)
Michel Louge (Cornell University)
Jean-Noël Roux (IFSTTAR)
Martin van Hecke (Leiden Institute of Physics)

The content of this page was obtained from http://www.ima.org.uk/conferences/conferences_calendar/dense_granular_flows.cfm

Applications for this workshop are now closed

Timetable

Monday 1st July 2013
09:00 to 09:30	Registration	No Room Required
09:30 to 09:40	Welcoming Talk	Room 1
09:40 to 10:40	Michel Louge Cornell University Keynote Talk: Dense Granular Flows Down Inclines	Room 1
10:40 to 11:00	Granular collapse in rotational environments	Room 1
11:00 to 11:40	Morning Coffee	No Room Required
11:40 to 12:00	Transition from the viscous to the inertial regime in dense suspensions	Room 1
12:00 to 12:20	Experiments and modeling for velocity and force fields characterization around a moving intruder into dense granular matter	Room 1
12:20 to 12:40	Scaling laws for melting ice avalanches	Room 1
12:40 to 14:00	Lunch at INI	No Room Required
14:00 to 14:20	Instabilities in the homogeneous cooling of gas-solid flows	Room 1
14:20 to 14:40	Olivier Pouliquen How plants feel gravity: a granular flow problem?	Room 1
14:40 to 15:00	Direct Numerical Simulation of Dense Granular Flows at Moderate Reynolds Number	Room 1
15:00 to 15:20	Segregation effects in granular collapses	Room 1
15:20 to 16:00	Afternoon Tea	No Room Required
16:00 to 16:20	Segregation in a quasi-stationary avalanche on an inclined conveyor-belt	Room 1
16:20 to 16:40	Alexandre Valance Scaling laws in Aeolian transport	Room 1
16:40 to 17:00	Non-Local Rheology	Room 1
17:00 to 17:20	The granular silo as a continuum visco-plastic flow	Room 1
17:20 to 18:00	Drinks reception / poster session	No Room Required

Tuesday 2nd July 2013
09:00 to 10:00	Keynote Talk: Kinetic theory for granular mixtures at moderate densities. Some applications	Room 1
10:00 to 10:20	Charles Campbell University of Southern California Elastic Granular Flows: Recent Observations	Room 1
10:20 to 11:00	Morning Coffee	No Room Required
11:00 to 11:20	Drag and lift forces in granular flows	Room 1
11:20 to 11:40	The Jamming Street lamp in the world of granular media	Room 1
11:40 to 12:00	Shear-Induced Diffusion of Particles in a Granular Paste Sheared in a Large Gap Couette Cell	Room 1
12:00 to 12:20	Density-induced the streak segregation patterns in a rotating drum	Room 1
12:20 to 13:40	Lunch at INI	No Room Required
13:40 to 14:20	Jean-Noel Roux Concentrated non-Brownian suspensions in viscous fluids. Numerical simulation results, a "Granular" Point of View	Room 1
14:20 to 14:40	Rheology and segregation of a heterogeneous cohesive granular material	Room 1
14:40 to 15:00	Michele Larcher University of Trento Size Segregation in Dry Flows of Binary Granular Mixtures	Room 1
15:00 to 15:20	Influence of a cylinder forest on granular flows upon inclines	Room 1
15:20 to 16:00	Afternoon Tea	No Room Required
16:00 to 16:20	Colin Thornton University of Birmingham Multi-scale modelling of shallow granular flows	Room 1
16:20 to 16:40	Shear Induced Alignment of Elongated Particles	Room 1
16:40 to 17:00	James Jenkins Cornell University Inclined Granular Flows Supported on a Collisional Shear Layer	Room 1
17:00 to 18:00	Discussion	Room 1

Wednesday 3rd July 2013
09:00 to 09:40	Keynote Talk: Yielding and microstructure in a 2D jammed material under shear deformation	Room 1
09:40 to 10:00	Experimental study of creep flows and precursors to failure in granular material	Room 1
10:00 to 10:20	Stadium shear experiments: eddy viscosity in dense granular flows	Room 1
10:20 to 11:00	Morning Coffee	No Room Required
11:00 to 11:20	Diffusion and segregation of a granular impurity in a dense inelastic fluid	Room 1
11:20 to 11:40	New regimes and phase transitions in channeled granular flows	Room 1
11:40 to 12:00	A three-dimensional numerical model for dense granular flows based on ƒÊ(I ) rheology	Room 1
12:00 to 12:20	An alternative formulation for granular avalanches over non-trivial topography	Room 1
12:20 to 13:40	Lunch at INI	No Room Required
13:40 to 14:40	Viswanathan Kumaran Indian Institute of Science Transition in a dense granular flow down an inclined plane	Room 1
14:00 to 14:20	Experimental and Kinetic theory based Numerical Study of Multiphase Solid-gas Flow	Room 1
14:20 to 14:40	Francois Chevoir Laboratoire Navier The rheophysics of two athermal systems: dry granular media and non-Brownian suspensions	Room 1
14:40 to 15:00	Francois Chevoir Laboratoire Navier Rheophysics of wet granular materials	Room 1
15:00 to 15:20	Patrick Richard Granular flows confined between flat, frictional walls	Room 1
15:20 to 16:00	Afternoon Tea	No Room Required
16:00 to 16:20	Dense gas-particles flows in a horizontal U-shaped channel	Room 1
16:20 to 16:40	Dense granular fluids in confined geometry	Room 1
16:40 to 17:00	Nicolas Taberlet Granular Drum on an Incline	Room 1

Thursday 4th July 2013
09:00 to 09:40	Martin van Hecke Slow Granular Flows	Room 1
09:40 to 10:00	Comparing dense suspensions and soft amorphous solids indicate the emergence of selforganization in flow	Room 1
10:00 to 10:20	Directional statistics in dense granular materials	Room 1
10:20 to 11:00	Morning Coffee	No Room Required
11:00 to 11:20	Inter-particle force and stress models for wet and dry particulate flow at the intermediate flow regime	Room 1
11:20 to 11:40	Clogging in bottlenecks: from inert particles to active matter	Room 1
11:40 to 12:00	Experiments and Modelling on the Flow Patterns of Cohesive Granular Materials in Spouted Beds	Room 1
12:00 to 13:30	Lunch at INI and close	No Room Required

Speakers

Charles Campbell University of Southern California
Francois Chevoir Laboratoire Navier
James Jenkins Cornell University
Viswanathan Kumaran Indian Institute of Science
Michele Larcher University of Trento
Michel Louge Cornell University
Olivier Pouliquen
Patrick Richard
Jean-Noel Roux
Nicolas Taberlet
Colin Thornton University of Birmingham
Alexandre Valance
Martin van Hecke

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