Special issue on the discreet element method : numerical modeling of discontinue.
Title:
Special issue on the discreet element method : numerical modeling of discontinue.
Author:
Kuhn, Matthew R.
ISBN:
9781845442316
Personal Author:
Physical Description:
1 online resource (341 pages)
Contents:
CONTENTS -- EDITORIAL ADVISORY BOARD -- Abstracts and keywords -- Preface -- Contributions to the experimental validation of the discrete element method applied to tumbling mills -- Strategies for contact resolution of level surfaces -- A direct simulation method for particle-fluid systems -- Large scale industrial DEM modelling -- Discrete element method An effective way for particle scale research of particulate matter -- Contact resolution algorithm for an ellipsoid approximation for discrete element modeling -- A contact algorithm for partitioning N arbitrary sized objects -- Comparison of experimental and FEM/DEM results for gravitational deposition of identical cubes -- A 2D polygon/polygon contact model: algorithmic aspects -- Selecting a suitable time step for discrete element simulations that use the central difference time integration scheme -- Numerical studies of uniaxial powder compaction process by 3D DEM -- Thin tunnel liners modelled with particle flow code -- Shape selection menu for grand scale discontinua systems -- A particle center based homogenization strategy for granular assemblies -- Simulations of underground structures subjected to dynamic loading using the distinct element method -- A discrete element Lagrangian sea ice model -- Discrete element modeling with dilated particles -- Dynamic simulation of multiple deformable bodies using combined discrete and finite element methods.
Abstract:
Accurate 3D experimental particle trajectory data, acquired from a laboratory tumbling mill using bi-planar X-ray filming, are used to validate the discrete element method (DEM). Novel numerical characterisation techniques are presented that provide a basis for comparing the experimental and simulated charge behaviour. These techniques are based on fundamental conservation principles, and provide robust, new interpretations of charge behaviour that are free of operator bias. Twoand three-dimensional DEM simulations of the experimental tumbling mill are performed, and the relative merits of each discussed. The results indicate that in its current form DEM can simulate some of the salient features of the tumbling mill charge, however, comparison with the experiment indicate that the technique requires refinement to adequately simulate all aspects of the system.
Local Note:
Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, 2017. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries.
Genre:
Electronic Access:
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