| Issue |
EPJ Web Conf.
Volume 340, 2025
Powders & Grains 2025 – 10th International Conference on Micromechanics on Granular Media
|
|
|---|---|---|
| Article Number | 06012 | |
| Number of page(s) | 3 | |
| Section | Geophysical, Environmental and Planetary Processes | |
| DOI | https://doi.org/10.1051/epjconf/202534006012 | |
| Published online | 01 December 2025 | |
https://doi.org/10.1051/epjconf/202534006012
Obstacle-Induced Shape Transformations of Granular Arches in a 3D Silo
1 Tata Institute of Fundamental Research, Mumbai. Homi Bhabha Road, Mumbai 400-005, India
2 Department of Physics, University of Massachusetts Amherst, MA 01003, USA
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Published online: 1 December 2025
Abstract
The formation of stable arches leads to intermittent clogging during discharge from hoppers. In recent work (Sinha et al. [1]) we have shown that a slender rod inserted into the flow can suppress clogging, with purely geometric considerations determining the optimal height of a rod for a given diameter. Building on that work, we now analyze the geometry of the arch through imaging, and find direct evidence that the rod participates in the clogging arch when optimally located. The rod modifies the shape of the arch, making it both asymmetric and variable in position. The shape of the arch also signals the best choice of rod diameter to minimize clogging.
© The Authors, published by EDP Sciences, 2025
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