The role of the particle aspect ratio in the discharge of a narrow silo

Autor: Tivadar Pongó, Bo Fan, Dariel Hernández-Delfin, János Török, Ralf Stannarius, Raúl Cruz Hidalgo, Tamás Börzsönyi

Publikováno v: New Journal of Physics, Vol 24, Iss 10, p 103036 (2022)

The time evolution of silo discharge is investigated for different granular materials made of spherical or elongated grains in laboratory experiments and with discrete element model (DEM) calculations. For spherical grains, we confirm the widely know

Externí odkaz: https://doaj.org/article/54e136c770554af5b696c9bebc1146e1

Discharge of elongated grains in silos under rotational shear

Autor: Tivadar Pongó, Tamás Börzsönyi, Raúl Cruz Hidalgo

The discharge of elongated particles from a silo with rotating bottom is investigated numerically. The introduction of a slight transverse shear reduces the flow rate $Q$ by up to 70% compared to stationary bottom, but the flow rate shows a modest in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c70c8185f6a28b0f05e405820698cb6
https://hdl.handle.net/10171/64986

Discharge of elongated grains from silo with rotating bottom

Autor: Tivadar Pongó, Kiwing To, Yi-Kai Mo, Tamás Börzsönyi

Publikováno v: Dadun. Depósito Académico Digital de la Universidad de Navarra
instname
Physical Review E

We study the flow of elongated grains (wooden pegs of length $L$=20 mm with circular cross section of diameter $d_c$=6 and 8 mm) from a silo with a rotating bottom and a circular orifice of diameter $D$. In the small orifice range ($D/d
Comment:

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4866f77ceef5566f34be3fffd7677106
https://hdl.handle.net/10171/62000

Flow in an hourglass: particle friction and stiffness matter

Autor: Balázs Szabó, Viktória Stiga, Tivadar Pongó, Raúl Cruz Hidalgo, János Török, Tamás Börzsönyi, Ralf Stannarius, Sára Lévay

Publikováno v: New Journal of Physics
Dadun. Depósito Académico Digital de la Universidad de Navarra
instname

Granular flow out of a silo is studied experimentally and numerically. The time evolution of the discharge rate as well as the normal force (apparent weight) at the bottom of the container is monitored. We show, that particle stiffness has a strong e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c789a993ac0a3aee6a42a1b879793b8

Continuously heated granular gas of elongated particles

Autor: Dmitry Puzyrev, Raúl Cruz Hidalgo, Kirsten Harth, Tivadar Pongó, Ralf Stannarius

Publikováno v: EPJ Web of Conferences, Vol 249, p 04003 (2021)
Dadun. Depósito Académico Digital de la Universidad de Navarra
Consejo Superior de Investigaciones Científicas (CSIC)
EPJ Web of Conferences

Some years ago, Harth et al. experimentally explored the steady state dynamics of a heated granular gas of rod-like particles in microgravity [K. Harth et al. Phys. Rev. Lett. 110, 144102 (2013)]. Here, we report numerical results that quantitatively

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3801b4049be44bdf656817980f889dab