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Segregation is a pervasive phenomena in
granular flows. In the case of rapid granular flows, segregation due to a
granular energy gradient is often observed. The focus of the current
effort is to investigate size segregation in particulate mixtures with
continuous size distributions (Gaussian or lognormal) when exposed to a
gradient in granular energy. Discrete-particle (molecular-dynamics)
simulations have been employed for both 2D and 3D systems.
In the figure above, particles with high
granular energy are shown in red with particles of low granular energy
shown in blue. The top bounding wall of the simulation domain is
"high energy" and the lower bounding wall is "low
energy." All side boundaries are periodic. The particulate mixture
shown has a Gaussian size distribution.
Student: Steven Dahl (Ph.D. candidate)
Faculty: Christine Hrenya
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