17 citations · 17 across the 1 of their papers we have counts for
4 papers
Designing non-segregating granular mixtures
Yifei Duan, Paul B. Umbanhowar, Richard M. Lueptow
In bidisperse particle mixtures varying in size or density alone, large particles rise (driven by percolation) and heavy particles sink (driven by buoyancy). When the two particle…
Modelling segregation of flowing bidisperse granular mixtures varying simultaneously in size and density
Yifei Duan, Paul B. Umbanhowar, Julio M. Ottino +1
Flowing granular materials segregate due to differences in particle size (driven by percolation) and density (driven by buoyancy). Modelling the segregation of mixtures of large/he…
Segregation models for density-bidisperse granular flows
Yifei Duan, Paul B. Umbanhowar, Julio M. Ottino +1
Individual constituent balance equations are often used to derive expressions for species-specific segregation velocities in flows of dense granular mixtures. We propose a semiempi…
Incorporation of Velocity-dependent Restitution Coefficient and Particle Surface Friction into Kinetic Theory for Modeling Granular Flow Cooling
Yifei Duan, Zhi-Gang Feng
Kinetic theory (KT) has been successfully used to model rapid granular flows in which particle interactions are frictionless and near elastic. However, it fails when particle inter…