Journal ArticleDOI
Discrete particle simulation of gas fluidization of ellipsoidal particles
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TLDR
In this article, a coupled simulation approach of discrete element method (DEM) and computational fluid dynamics (CFD) has been successfully developed to study the gas-solid flow and heat transfer in fluidization at a particle scale.About:
This article is published in Chemical Engineering Science.The article was published on 2011-12-01. It has received 184 citations till now. The article focuses on the topics: Fluidization & Particle.read more
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DEM/CFD-DEM Modelling of Non-spherical Particulate Systems: Theoretical Developments and Applications
TL;DR: A review of the recent efforts in developing discrete element method (DEM) approaches to model non-spherical particulate systems (NSPS) and strategies of coupling such a nonspherical DEM model with computational fluid dynamics (CFD) for particle-fluid flows is presented in this paper.
Journal ArticleDOI
CFD simulation of dense particulate reaction system: approaches, recent advances and applications
TL;DR: In this article, the authors provide a review of the computational fluid dynamics (CFD) work in the simulation of dense particulate reaction system (DPRS) in many engineering fields such as energy conversion, petrochemical processing, mineral processing, chemical engineering and pharmaceutical manufacturing.
Journal ArticleDOI
Influence of void fraction calculation on fidelity of CFD-DEM simulation of gas-solid bubbling fluidized beds
TL;DR: In this article, the accuracy of particle centroid method and analytical approach in predicting the particle-fluid flow characteristics of bubbling fluidized beds was investigated, and it was found that there is a critical cell size (3.82 particle diameters) beyond which the PCM can achieve the same numerical stability and prediction accuracy as those of analytical approach.
Journal ArticleDOI
Flow characteristics and discharge rate of ellipsoidal particles in a flat bottom hopper
TL;DR: In this paper, ellipsoidal particles were used to investigate the shape effect on granular flow in a cylindrical hopper and the results indicated that particle shape can make a significant effect on the flow pattern.
Journal ArticleDOI
Granular materials composed of shape-anisotropic grains
Tamás Börzsönyi,Ralf Stannarius +1 more
TL;DR: Granular physics has made considerable progress during the past decades in the understanding of static and dynamic properties of large ensembles of interacting macroscopic particles, including the modeling of phenomena like jamming, segregation and pattern formation, the development of related industrial applications or traffic flow control.
References
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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
The numerical computation of turbulent flows
Brian Launder,D. B. Spalding +1 more
TL;DR: In this paper, the authors present a review of the applicability and applicability of numerical predictions of turbulent flow, and advocate that computational economy, range of applicability, and physical realism are best served by turbulence models in which the magnitudes of two turbulence quantities, the turbulence kinetic energy k and its dissipation rate ϵ, are calculated from transport equations solved simultaneously with those governing the mean flow behaviour.
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