Journal ArticleDOI
Discharge of rapeseeds from a model silo: Physical testing and discrete element method simulations
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TLDR
In this paper, two contact models were used to evaluate regions of validity of two basic contact models to describe flow rate of rapeseeds through horizontal orifice, and the results showed that the proposed contact models reproduced well experimental results for slow particle flow but for higher flow rates the models need to be improved by adding dissipative term.About:
This article is published in Computers and Electronics in Agriculture.The article was published on 2013-09-01. It has received 37 citations till now. The article focuses on the topics: Mass flow.read more
Citations
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Journal ArticleDOI
Parameters and contact models for DEM simulations of agricultural granular materials: A review
Józef Horabik,Marek Molenda +1 more
TL;DR: The discrete element method has been in development since 1970s and has recently found practical application in simulations of granular assemblies to investigate natural phenomena as well as a design tool for technology as discussed by the authors.
Journal ArticleDOI
Maize grain shape approaches for DEM modelling
TL;DR: The shape of a grain of maize has been approached using the so-called multi-sphere method, and also as single-spherical particles with rolling friction and results from two DEM software codes were compared.
Journal ArticleDOI
Applications of Discrete Element Method in Modeling of Grain Postharvest Operations
TL;DR: The discrete element method (DEM) as mentioned in this paper is a proven numerical method that can model discrete particles like grain kernels by tracking the motion of individual particles, which has been used extensively in the field of rock mechanics.
Journal ArticleDOI
Determination of the restitution coefficient of seeds and coefficients of visco-elastic Hertz contact models for DEM simulations
TL;DR: In this article, the coefficients of restitution (CoRs) of seeds coming from three plants, namely the pea (Pisum sativum L. cv. Piast), soybean (Glycine max (L.) Merr. Annushka) and rapeseed (Brassica napus L.cv. Licosmos), at three levels of moisture content for an impact velocity V0 ranging from 0.17 to 8.8
Journal ArticleDOI
Theories and Applications of CFD–DEM Coupling Approach for Granular Flow: A Review
Mahmoud A. El-Emam,Mahmoud A. El-Emam,Ling Zhou,Weidong Shi,Chen Han,Ling Bai,Ramesh K. Agarwal +6 more
TL;DR: The existing published literature indicates that CFD–DEM is a promising approach to study the bio-particulate matter behavior immersed in fluid flow, and it could be benefiting from developing and optimizing the device's geometry and the operations.
References
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Journal ArticleDOI
Granular solids, liquids, and gases
TL;DR: Granular materials are ubiquitous in the world around us as discussed by the authors and have properties that are different from those commonly associated with either solids, liquids, or gases, and some of the special properties of granular materials and describe recent research developments.
Journal ArticleDOI
The flow of granular solids through orifices
TL;DR: In this article, the authors compared the results of their own investigations on the flow of granular solids (a number of seeds) with results published by others, and showed that the results were similar to those of others.
Journal ArticleDOI
A theoretical model for the stick/bounce behaviour of adhesive, elastic-plastic spheres
Colin Thornton,Zemin Ning +1 more
TL;DR: In this article, the authors considered the normal impact of elastic-perfectly plastic spheres, with and without interface adhesion, and presented an analytical solution for the coefficient of restitution which is expressed in terms of the impact velocity, the critical sticking velocity and the velocity below which the interaction is assumed to be elastic.
Journal ArticleDOI
Restitution Coefficient in a Collision between Two Spheres
Goro Kuwabara,Kimitoshi Kono +1 more
TL;DR: In this paper, the restitution coefficient e was derived as a function of the elastic constants, radii, masses and colliding velocities of two spheres by taking the visco-elastic property into consideration.
Journal ArticleDOI
The flow of granular materials—I: Discharge rates from hoppers
TL;DR: In this paper, the first of a set of three review papers on the flow of granular materials is presented, where the experimental results for hopper discharge rates and the correlations of these results are discussed.
Related Papers (5)
Parameters and contact models for DEM simulations of agricultural granular materials: A review
Józef Horabik,Marek Molenda +1 more