Journal ArticleDOI
Geometrical characteristics of the pore space in a random packing of equal spheres
S.K. Chan,Ka Ming Ng +1 more
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Tetrahedral tessellation is applied to an existing, computer-generated, random packing of nearly equal spheres as discussed by the authors, where the objective is to identify the tetrahedral pores and then determine the geometrical characteristics of the pore space.About:
This article is published in Powder Technology.The article was published on 1988-02-01. It has received 40 citations till now. The article focuses on the topics: Tetrahedron packing & Tetrahedron.read more
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Prediction of colloid detachment in a model porous media: hydrodynamics
John Bergendahl,Domenico Grasso +1 more
TL;DR: In this paper, a model of physically based colloid detachment was proposed, where polystyrene colloids were attached in the primary minimum to glass beads in a packed column, and a residually attached fraction was subsequently detached via hydrodynamic shear.
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Modeling flow in disordered packed beds from pore-scale fluid mechanics
TL;DR: In this paper, a network model for the slow flow of an incompressible fluid in disordered packed beds is presented, where fundamental fluid mechanics equations are solved at the pore scale and then translated to macroscopic behaviour using a network approach.
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Prediction of colloid detachment in a model porous media: Thermodynamics
John Bergendahl,Domenico Grasso +1 more
TL;DR: In this article, the authors used Extended-DLVO theory to determine the median detaching pH for deionized water, and solutions of 0.01 and 0.1 M NaCl.
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Structure of packed beds probed by Magnetic Resonance Imaging
TL;DR: In this article, Magnetic Resonance Imaging (MRI) volume-visualisation in combination with image analysis techniques are used to characterise the structure within the interparticle space of unconsolidated and consolidated packed beds of ballotini for column-to-particle diameter ratios of 9, 14 and 19.
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Coupling Underwater Superoleophobic Membranes with Magnetic Pickering Emulsions for Fouling-Free Separation of Crude Oil/Water Mixtures: An Experimental and Theoretical Study.
TL;DR: A membrane-based and fouling-free oil/water separation method that couples carbon nanotube-poly(vinyl alcohol) underwater superoleophobic ultrafiltration membranes with magnetic Pickering emulsions that is insensitive to low water temperatures, high ionic strength, or crude oil loading, while allowing operation at high permeate fluxes and producing high quality permeate.
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Serially Deposited Amorphous Aggregates of Hard Spheres
TL;DR: In this paper, a large aggregate of several thousand equal hard spheres was constructed by depositing additional spheres, one at a time, at surface sites on a small seed cluster, placing each new sphere in contact with three already present and not moving it afterward.
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Systematic Packing of Spheres: With Particular Relation to Porosity and Permeability
L. C. Graton,H. J. Fraser +1 more
TL;DR: In this article, the underlying principles of porosity and permeability of uniform spheres are investigated, and the relationships disclosed, important wherever orderly distribution of points or particles is involved, are especially treated as the underlying principle.
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Random Packing of Equal and Unequal Spheres in Two and Three Dimensions
William M. Visscher,M. Bolsterli +1 more
TL;DR: In this paper, a new computer simulation of random packing of spheres is applied to two-and three-dimensional problems with a uni-directional gravitational force, and the simulation is used to solve two-dimensional convex problems.
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A new model for granular porous media: Part I. Model formulation
TL;DR: In this article, a new model for porous media comprised of monosized, or nearly-monosized grains, is developed, where the problem of flow through each unit cell is reduced, subject to reasonable assumptions, to the determination of the flow in an infinitely long periodically constricted tube.
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Simulated random packing of equal spheres
TL;DR: PACS as mentioned in this paper is a computer program to simulate very slow settling of rigid equal spheres into a randomly packed bed, and it is used to simulate packings of 6,000, 10,000 and 15,000 spheres.