Journal ArticleDOI
Discrete particle simulation of two-dimensional fluidized bed
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In this paper, Cundall's Distinct Element Method (P.A.Cundall and O.L. Strack, 1979) is used to model contact forces between particles.About:
This article is published in Powder Technology.The article was published on 1993-10-01. It has received 2015 citations till now. The article focuses on the topics: Discrete element method & CFD-DEM model.read more
Citations
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Discrete particle simulation of particulate systems: Theoretical developments
TL;DR: This paper reviews the work in this area with special reference to the discrete element method and associated theoretical developments, and covers three important aspects: models for the calculation of the particle–particle and particle–fluid interaction forces, coupling of discrete elements method with computational fluid dynamics to describe particle-fluid flow, and the theories for linking discrete to continuum modelling.
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Discrete particle simulation of particulate systems: A review of major applications and findings
TL;DR: Zhu et al. as discussed by the authors provided a summary of the studies based on discrete particle simulation in the past two decades or so, with emphasis on the microdynamics including packing/flow structure and particle-particle, particle-fluid and particle wall interaction forces.
Journal ArticleDOI
Discrete particle simulation of bubble and slug formation in a two-dimensional gas-fluidised bed: A hard-sphere approach.
TL;DR: In this paper, a discrete particle model of a gas-fluidized bed was developed and in this the two-dimensional motion of the individual, spherical particles was directly calculated from the forces acting on them, accounting for the interaction between the particles and the interstitial gas phase.
Journal ArticleDOI
Numerical simulation of the gas-solid flow in a fluidized bed by combining discrete particle method with computational fluid dynamics
TL;DR: In this article, a combined approach of discrete particle method and computational fluid dynamics (DPM-CFD), in which the motion of individual particles is obtained by solving Newton's second law of motion and gas flow by the Navier-Stokes equation based on the concept of local average, is presented.
Journal ArticleDOI
Review of discrete particle modeling of fluidized beds
TL;DR: This paper reviews the use of discrete particle models for the study of the flow phenomena prevailing in fluidized beds and describes the gas-phase as a continuum, whereas each of the individual particles is treated as a discrete entity.
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Journal Article
Discrete numerical model for granular assemblies.
Peter Cundall,Otto D. L. Strack +1 more
TL;DR: The distinct element method as mentioned in this paper is a numerical model capable of describing the mechanical behavior of assemblies of discs and spheres and is based on the use of an explicit numerical scheme in which the interaction of the particles is monitored contact by contact and the motion of the objects modelled particle by particle.
Journal ArticleDOI
A discrete numerical model for granular assemblies
Peter Cundall,Otto D. L. Strack +1 more
TL;DR: The distinct element method as mentioned in this paper is a numerical model capable of describing the mechanical behavior of assemblies of discs and spheres and is based on the use of an explicit numerical scheme in which the interaction of the particles is monitored contact by contact and the motion of the objects modelled particle by particle.
Journal ArticleDOI
Lagrangian numerical simulation of plug flow of cohesionless particles in a horizontal pipe
TL;DR: In this paper, Lagrangian-type numerical simulation was carried out on plug flow of cohesionless, spherical particles conveyed in a horizontal pipe and the motion of individual particles contacting each other was calculated using the equations of motion and a modified Cundall model.
Journal ArticleDOI
Porosity distributions in a fluidized bed with an immersed obstacle
TL;DR: In this paper, a thin transparent rectangular fluidized bed with an obstacle served as a rough model for a fluidized-bed combustor and was studied experimentally and computationally using two hydrodynamic equation sets.