302 citations · 1.6k across the 34 of their papers we have counts for
6 papers · 1 filter
Lift and drag forces on an inclined plow moving over a granular surface
Baptiste Percier, Sebastien Manneville, Jim N. McElwaine +2
We studied the drag and lift forces acting on an inclined plate while it is dragged on the surface of a granular media, both in experiment and numerical simulation. In particular,…
An Experimental Investigation of the Scaling of Columnar Joints
Lucas Goehring, Zhenquan Lin, Stephen W. Morris
Columnar jointing is a fracture pattern common in igneous rocks in which cracks self-organize into a roughly hexagonal arrangement, leaving behind an ordered colonnade. We report o…
Pattern scaling in the axial segregation of granular materials in a rotating tube
Christopher R. J. Charles, Zeina S. Khan, Stephen W. Morris
Granular mixtures frequently segregate by grain size along the axis of partially-filled, horizontal, rotating tubes. When segregation approaches saturation at the surface, a well-d…
Order and disorder in columnar joints
Lucas Goehring, Stephen W. Morris
Columnar joints are three-dimensional fracture networks that form in cooling basalt and several other media. The network organizes itself into ordered, mostly hexagonal columns. Th…
Subdiffusive axial transport of granular materials in a long drum mixer
Zeina S. Khan, Stephen W. Morris
Granular mixtures rapidly segregate radially by size when tumbled in a partially filled horizontal drum. The smaller component moves toward the axis of rotation and forms a buried…
Traveling Granular Segregation Patterns in a Long Drum Mixer
Kiam Choo, T. C. A. Molteno, Stephen W. Morris
Mixtures of granular media often exhibit size segregation along the axis of a partially-filled, horizontal, rotating cylinder. Previous experiments have observed axial bands of seg…