Velocity field measurements in granular gravity flow in a near 2D silo

A Medina, JA Cordova, E Luna, C Trevino - Physics Letters A, 1998 - Elsevier
Using particle image velocimetry (PIV) we studied experimentally the whole velocity field
during the discharge of monodisperse granular material from a flat-bottomed 2D silo. We …

Flow behavior of granular material during funnel and mixed flow discharges: A comparative analysis

D Zhang, S Dong, H Guo, X Yang, L Cui, X Liu - Powder Technology, 2022 - Elsevier
The drainage of granular assembly from a flat-bottomed silo can be in either funnel flow
mode or mixed flow mode. The primary motivation of this work is to investigate whether there …

Discharge rates of dry granular material from bins with lateral exit holes

A Medina, D Cabrera, A Lopez-Villa, M Pliego - Powder technology, 2014 - Elsevier
In this work we have analyzed experimentally the mass flow rate, m˙, of the lateral outflow of
cohesionless sand beach and granulated sugar through circular orifices of diameter D and …

Density fluctuations in a model for vibrated granular media

M Nicodemi, A Coniglio, HJ Herrmann - Physical Review E, 1999 - APS
This paper presents the study of density fluctuations in a model for vibrated granular media.
Their microscopic origin is shown to be linked to the microscopic disorder in grains packing …

Characterization of patterns in rimming flow

R Chicharro, A Vazquez, R Manasseh - Experimental thermal and fluid …, 2011 - Elsevier
Patterns were generated inside a horizontal cylinder rotating at low speeds. The cylinder
was filled with a very low volume liquid fraction of 1.8% of Newtonian fluid and the rotation …

Experimental study of the tracer in the granular flow in a 2D silo

A Medina, J Andrade, C Trevino - Physics Letters A, 1998 - Elsevier
We present an experimental study of the dispersion of tracer particles close to the center,
during the gravity flow of monodisperse granular material in a flat silo. We obtained the …

[图书][B] Dynamical Behaviour of Non-spherical Grains in Granular Rapid Flows

MA Hanif - 2024 - research.utwente.nl
Granular material consists of macroscopic, discrete particles. Macroscopic means that the
particle must be large enough to be visible for the naked eye with a size usually larger than …

Measurement of granular flow in a vertical column using pulse induction (PI)

N Meziane, A Bettahar, R Choudhary… - Biosystems engineering, 2013 - Elsevier
Gravity flow of granular materials in vertical columns can generate pressure and density
fluctuations which are difficult to quantify. Examination of prior research led us to propose a …

Use of spatiotemporal diagrams to characterize a silo discharging process

B Nsom, N Latrache - Transactions of the Canadian Society for …, 2013 - cdnsciencepub.com
To get a better knowledge of discharging flows of ensiled granular materials, a small scale
silo was designed and built. It is equipped with a flat bottom and it has a rectangular cross …

18.366 Random Walks and Diffusion, Spring 2005

MZ Bazant - 2005 - dspace.mit.edu
Discrete and continuum modeling of diffusion processes in physics, chemistry, and
economics. Topics include central limit theorems, continuous-time random walks, Levy …