Related Experiment Video
Updated: Mar 27, 2026

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
Published on: December 4, 2017
Discharge flow of a bidisperse granular media from a silo: Discrete particle simulations
Y Zhou1,2, P Ruyer1, P Aussillous2
1Institut de Radioprotection et de Sûreté Nuclaire (IRSN), PSN-RES, SEMIA, LIMAR, Cadarache, St Paul-Lez-Durance 13115, France.
Abstract:
Discrete particle simulations are used to study two-dimensional discharge flow from a silo using both monodisperse and bidisperse mixtures. The density and the velocity profiles through the aperture are measured. In the monodisperse case, two particles' diameters are studied for different outlet diameters. In the bidisperse case, we varied the fine mass fraction of the mixture. In all cases, the density and the velocity profiles are found to follow the same self-similar law. Based on these observations and the previous work of Benyamine et al., a physical model is proposed to describe the flow of bidisperse mixtures giving an explicit expression for the flow rate that is in good agreement with the results.
More Related Videos
11:51Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions
Published on: February 22, 2018
12:26Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics
Published on: August 27, 2013
Related Concept Videos
Design Example: Creating a Hydraulic Model of a Dam Spillway
Uniform Depth Channel Flow
Underflow Gates
Rapidly Varying Flow
Steady, Laminar Flow Between Parallel Plates
Gradually Varying Flow