Modelling of the Energy Dissipation Generated by Friction in Granular Flow Using the Discrete Element Method

2009 ◽  
Author(s):  
V.D. Nguyen ◽  
J. Fortin ◽  
M. Guessasma ◽  
E. Bellenger ◽  
P. Coorevits
Keyword(s):  
Energy Dissipation ◽  
Discrete Element Method ◽  
Granular Flow ◽  
Discrete Element ◽  
Element Method

Discrete element method modeling of non-spherical granular flow in rectangular hopper

2010 ◽  
Vol 49 (2) ◽  
pp. 151-158 ◽  
Author(s):  
He Tao ◽  
Baosheng Jin ◽  
Wenqi Zhong ◽  
Xiaofang Wang ◽  
Bing Ren ◽  
...  
Keyword(s):  
Discrete Element Method ◽  
Granular Flow ◽  
Discrete Element ◽  
Element Method

Effect of Bed Depth on Granular Flow and Homogenization in a Vertical Bladed Mixer via Discrete Element Method

2015 ◽  
Vol 38 (7) ◽  
pp. 1195-1202 ◽  
Author(s):  
Tomas Barczi ◽  
Tereza Travnickova ◽  
Jaromir Havlica ◽  
Martin Kohout
Keyword(s):  
Discrete Element Method ◽  
Granular Flow ◽  
Discrete Element ◽  
Element Method

Predicting the drag coefficient of a granular flow using the discrete element method

2009 ◽  
Vol 2009 (06) ◽  
pp. P06012 ◽  
Author(s):  
Lionel Favier ◽  
Dominique Daudon ◽  
Frédéric-Victor Donzé ◽  
Jacky Mazars
Keyword(s):  
Discrete Element Method ◽  
Drag Coefficient ◽  
Granular Flow ◽  
Discrete Element ◽  
Element Method

Modeling of Granular Flow and Combined Heat Transfer in Hoppers by the Discrete Element Method (DEM)

2005 ◽  
Vol 128 (3) ◽  
pp. 439-444 ◽  
Author(s):  
Harald Kruggel-Emden ◽  
Siegmar Wirtz ◽  
Erdem Simsek ◽  
Viktor Scherer
Keyword(s):  
Discrete Element Method ◽  
Heat Transport ◽  
Granular Flow ◽  
Granular Media ◽  
Element Model ◽  
Discrete Element ◽  
Waste Utilization ◽  
Discrete Element Modeling ◽  
Particle Assemblies ◽  
Element Method

The discrete element method can be used for modeling moving granular media in which heat and mass transport takes place. In this paper the concept of discrete element modeling with special emphasis on applicable force laws is introduced and the necessary equations for heat transport within particle assemblies are derived. Possible flow regimes in moving granular media are discussed. The developed discrete element model is applied to a new staged reforming process for biomass and waste utilization which employs a solid heat carrier. Results are presented for the flow regime and heat transport in substantial vessels of the process.

Simulation of Energy Dissipation and Heat Transfers of a Braking System Using the Discrete Element Method: Role of Roughness and Granular Plateaus

2019 ◽  
Vol 142 (1) ◽  
Author(s):  
Viet-Dung Nguyen ◽  
Philippe Dufrénoy ◽  
Patrice Coorevits
Keyword(s):  
Energy Dissipation ◽  
Discrete Element Method ◽  
Discrete Element ◽  
Heat Propagation ◽  
Point Of View ◽  
Disk Interface ◽  
Braking System ◽  
Interparticle Friction ◽  
Heat Transfers ◽  
Element Method

Abstract The objective of this study focuses on the energy dissipation by friction on the interface of a braking system and the effects of roughness and granular plateaus on heat propagation. Faced with the difficulty of defining velocity accommodation and thermal partition between the two bodies in contact (disk and pad, for example,), the authors model the third body (friction) layer with circular particles detached from the pad. From a numerical point of view, this paper proposes a strategy of storing mechanical calculations in steady-state and using it for successive thermal processing in discrete element method (DEM) code. Thus, the heat is generated due to interparticle friction and is dissipated in the disk/pad interface by conductance. Accordingly, this coupling micro–macro model aims to determine the temperature rise of the pad/disk interface and to identify the equivalent thermal resistance. In line with that, the authors provide discussions of these parameters compared to experimental/empirical data as reported in the literature review and limitations of the model.

Discrete Element Method–Based Investigations of Granular Flow in a Pebble Bed Reactor

2017 ◽  
Vol 199 (1) ◽  
pp. 47-66
Author(s):  
Vaibhav Khane ◽  
Mahmoud M. Taha ◽  
Gary E. Mueller ◽  
Muthanna H. Al-Dahhan
Keyword(s):  
Discrete Element Method ◽  
Granular Flow ◽  
Discrete Element ◽  
Pebble Bed ◽  
Pebble Bed Reactor ◽  
Element Method
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