Granular Drag on a Discrete Object: Shape Effects on Jamming

Details Granular Drag on a Discrete Object: Shape Effects on Jamming Granular Drag on a Discrete Object: Shape Effects on Jamming

2001-07-19

arxiv.org/abs/cond-mat/0107392v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

Scientific paper

10.1103/PhysRevE.64.061303

We study the drag force on discrete objects with circular cross section moving slowly through a spherical granular medium. Variations in the geometry of the dragged object change the drag force only by a small fraction relative to shape effects in fluid drag. The drag force depends quadratically on the object's diameter as expected. We do observe, however, a deviation above the expected linear depth dependence, and the magnitude of the deviation is apparently controlled by geometrical factors.

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