474 citations · 3.5k across the 62 of their papers we have counts for
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Drag induced lift in granular media
Yang Ding, Nick Gravish, Daniel I. Goldman
Laboratory experiments and numerical simulation reveal that a submerged intruder dragged horizontally at constant velocity within a granular medium experiences a lift force whose s…
Force and flow transition in plowed granular media
Nick Gravish, Paul B. Umbanhowar, Daniel I. Goldman
We use plate drag to study the response of granular media to localized forcing as a function of volume fraction, . A bifurcation in the force and flow occurs at the onset of dil…
Granular impact and the critical packing state
Paul Umbanhowar, Daniel I. Goldman
Impact dynamics during collisions of spheres with granular media reveal a pronounced and non-trivial dependence on volume fraction ϕ. Post impact crater morphology identifies the c…