Fluid particle interaction in packings of monodisperse angular particles
File(s)
Published version
Author(s)
Zhao, budi
O'Sullivan, Catherine
Type
Journal Article
Abstract
Understanding fluid flow in granular materials is essential for many engineering applications, including petroleum recovery, groundwater movement and embankment stability. This study investigates the influence of particle angularity on permeability and fluid-particle interaction forces. A random shape generator based on spherical harmonics is used to create irregular-shaped particles with different levels of angularity. Granular packings of uniformly sized (monodisperse) particles are then constructed with the discrete element method (DEM), and pore scale computational fluid dynamics (CFD) simulations are used to determine the flow fields and the resulted fluid-particle interaction. The more angular particle assemblies thus generated are less permeable, and their fluid-particle interaction forces are higher. However, angularity has limited influence on flow rate distribution and flow tortuosity. The influence of angularity is localized. An increase in angularity generates a larger variance of the pressure distribution on the particle surfaces, thus increasing the pressure component of the fluid-particle interaction force.
Date Issued
2022-01
Date Acceptance
2021-09-12
Citation
Powder Technology, 2022, 395, pp.133-148
ISSN
0032-5910
Publisher
Elsevier
Start Page
133
End Page
148
Journal / Book Title
Powder Technology
Volume
395
Copyright Statement
© 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)
License URL
Identifier
https://www.sciencedirect.com/science/article/pii/S0032591021008123?via%3Dihub
Subjects
Science & Technology
Technology
Engineering, Chemical
Engineering
Angularity
Fluid mechanics
Fluid-particle interaction
Permeability
Porous media
LATTICE-BOLTZMANN SIMULATION
X-RAY TOMOGRAPHY
PACKED-BEDS
HYDRAULIC CONDUCTIVITY
BIDISPERSE ARRAYS
RANDOM-FIELDS
DRAG FORCE
SHAPE
FLOW
PERMEABILITY
Chemical Engineering
0904 Chemical Engineering
0913 Mechanical Engineering
0914 Resources Engineering and Extractive Metallurgy
Publication Status
Published
Date Publish Online
2021-09-15