Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Orpe, A. V."'
Publikováno v:
Physics of Fluids, 36, 053326 (2024)
We investigated the clogging behavior observed during the flow of aspherical particles from a silo in the presence of spherical particles of different sizes and proportions using flow visualization experiments and discrete element method (DEM) simula
Externí odkaz:
http://arxiv.org/abs/2407.02080
Publikováno v:
Powder Technol., 409, 117809 (2022)
We have studied the gravity driven flow of spherical shaped, millimetric sized granular material coated with aspherical, micron-sized, near frictionless lubricant particles. Experiments were performed on an inclined plane using two different sized pa
Externí odkaz:
http://arxiv.org/abs/2210.11758
Publikováno v:
Phys. Fluids 33, 053102 (2021)
We investigate pressure driven pipe flow of Laponite suspension, as a model thixotropic fluid. The tendency of the suspension to age is controlled by addition of sodium chloride salt to vary the ionic strength. We use a syringe pump to prescribe the
Externí odkaz:
http://arxiv.org/abs/2105.02025
Publikováno v:
Rheologica Acta, 59, 291 (2020)
We have investigated the rheology and structure of a gel formed from a mixture of non-Brownian particles and two immiscible liquids. The suspension of particles in a liquid undergoes gelation upon the addition of a small content of second, wetting li
Externí odkaz:
http://arxiv.org/abs/2004.11617
Autor:
Orpe, Ashish V., Doshi, Pankaj
Publikováno v:
Phys. Rev. E, 100, 012901 (2019)
We show that the interparticle friction coefficient significantly influences the flow and jamming behavior of granular materials exiting through the orifice of a two-dimensional silo in the presence of another orifice located in its vicinity. The flu
Externí odkaz:
http://arxiv.org/abs/1907.02773
Publikováno v:
Physics of Fluids, {\bf 28}, 063303 (2016)
The spreading of a thin film of suspension on a spinning disk and the accompanying contact line instability is studied through flow visualization experiments. The critical radius for the onset of instability shows an increase with increase in the par
Externí odkaz:
http://arxiv.org/abs/1606.02829
Publikováno v:
Phys. Rev. E, 90, 062206 (2014)
We investigate the mixing characteristics of dry granular material while draining down a silo with multiple exit orifices. The mixing in the silo, which otherwise consists of noninteracting stagnant and flow regions, is observed to improve significan
Externí odkaz:
http://arxiv.org/abs/1412.5436
Publikováno v:
Phys. Rev. E (Rapid Communications) 90, 020201(R) (2014)
We show that the flow of granular material inside a 2-dimensional flat bottomed hopper is altered significantly by having more than one exit orifice. For the hoppers with small orifice widths, inter-mittent flow through one orifice enables the resump
Externí odkaz:
http://arxiv.org/abs/1408.0359
Publikováno v:
Eur. Phys. Lett., 84, 64003 (2008)
We find in complementary experiments and event driven simulations of sheared inelastic hard spheres that the velocity autocorrelation function $\psi(t)$ decays much faster than $t^{-3/2}$ obtained for a fluid of elastic spheres at equilibrium. Partic
Externí odkaz:
http://arxiv.org/abs/0811.2848
Publikováno v:
J. Fluid Mech., 605, 47-58 (2008)
Motivated by examples of erosive incision of channels in sand, we investigate the motion of individual grains in a granular bed driven by a laminar fluid to give us new insights into the relationship between hydrodynamic stress and surface granular f
Externí odkaz:
http://arxiv.org/abs/0805.0086