103 citations · 153 across the 8 of their papers we have counts for
8 papers
Facilitating a 3D granular flow with an obstruction
Abhijit Sinha, Jackson Diodati, Narayanan Menon +2
Ensuring a smooth rate of efflux of particles from an outlet without unpredictable clogging events is crucial in processing powders and grains. We show by experiments and simulatio…
Effect of Wall Friction on 2D Hopper Flow
Neil Shah, Brenda Carballo-Ramirez, Sumit Kumar Birwa +2
We report here on experiments and simulations examining the effect of changing wall friction on the gravity-driven flow of spherical particles in a vertical hopper. In 2D experimen…
Ergodicity breaking dynamics of arch collapse
Carl Merrigan, Sumit Kumar Birwa, Shubha Tewari +1
Gravity driven flows such as in hoppers and silos are susceptible to clogging due to the formation of arches at the exit whose failure is the key to re-initiation of flow. In vibra…
Attraction-induced jamming in the flow of foam through a channel
Karthik Menon, Rama Govindarajan, Shubha Tewari
We study the flow of a pressure-driven foam through a straight channel using numerical simulations, and examine the effects of a tuneable attractive potential between bubbles. This…
Signatures of Incipient Jamming in Collisional Hopper Flows
Shubha Tewari, Michal Dichter, Bulbul Chakraborty
Many disordered systems experience a transition from a fluid-like state to a solid-like state following a sudden arrest in dynamics called jamming. In contrast to jamming in spatia…
Growing length scale in gravity-driven dense granular flow
Shubha Tewari, Bidita Tithi, Allison Ferguson +1
We report simulations of a two-dimensional, dense, bidisperse system of inelastic hard disks falling down a vertical tube under the influence of gravity. We examine the approach to…