Tuesday, 25 April 2006: 8:00 AM-10:00 AM
Oceanic 2 (Dolphin Hotel)

Particle and Bulk Powder Characterization (TWa)

#79 - Measuring and Modeling the Response of Particle Systems - I (TWA19)
Bulk solids flow characterization and modeling still poses a challenge as these flow regimes involve both friction and collision. Bulk solids also can have varying shapes and sizes, which can make characterization and modeling difficult especially if fracture/fragmentation also occurs during the flow or loading regimes. This session would welcome papers that address: •Effect of size, shape and moisture on flow properties of powders. •Experimental methods for the estimation of residence time distribution of particles flowing from a storage silo. •Various experimental techniques for powder characterization. •Modeling techniques that address multi-particle interactions between particles of varying shapes. •Solid fracture/fragmentation modeling strategies or image characterization of fracture/fragmentation mechanisms. •Bulk solids characterization using imaging techniques, which serve as inputs or provide validation of the modeling approach.
Chair:Beena Sukumaran
CoChair:B. Pitchumani
8:00 AMStick-Slip Mechanism in Powder Flow
Marco Verwijs, Spyros Svoronos, Kerry Johanson
8:20 AMPenetration and Rebound of Steel Projectile from Aggregated Particles in Random Packing
Masahiro Nishida, Koichi Tanaka, Yusuke Ikeda
8:40 AMNumerical Modeling of Filling and Discharge Processes in Hoppers of Different Shapes
Irena Sielamowicz, Zenon Mroz, Robertas Balevicius, Rimantas Kacianauskas
9:00 AMMechanic Waves in Sand, 3d Simulations
Orion Mouraille, Stefan Luding
9:20 AMEnergy Distribution in the Squeezing of Particles in Concentrated Suspension
Patrice Estellé, Yannick Mélinge, Christophe Lanos, Arnaud Perrot
9:40 AMEffect of Moisture Induced Capillary Forces on Flow Properties of Thermal Power Station Coal
Mohan Medhe, B. Pitchumani

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