391 citations · 632 across the 4 of their papers we have counts for
4 papers
Three-dimensional shear in granular flow
Xiang Cheng, Jeremy B. Lechman, Antonio F. Barbero +5
The evolution of granular shear flow is investigated as a function of height in a split-bottom Couette cell. Using particle tracking, magnetic-resonance imaging, and large-scale si…
The Effect of Air on Granular Size Separation in a Vibrated Granular Bed
Matthias E. Möbius, Xiang Cheng, Peter Eshuis +3
Using high-speed video and magnetic resonance imaging (MRI) we study the motion of a large sphere in a vertically vibrated bed of smaller grains. As previously reported we find a n…
Intruders in the Dust: Air-Driven Granular Size Separation
M. E. Möbius, X. Cheng, G. S. Karczmar +2
Using MRI and high-speed video we investigate the motion of a large intruder particle inside a vertically shaken bed of smaller particles. We find a pronounced, non-monotonic densi…
Signatures of granular microstructure in dense shear flows
Daniel M. Mueth, Georges F. Debregeas, Greg S. Karczmar +3
Granular materials react to shear stresses differently than do ordinary fluids. Rather than deforming uniformly, materials such as dry sand or cohesionless powders develop shear ba…