Coarse Graining for Large-Scale DEM Simulations of Particle Flow – An Investigation on Contact and Cohesion Models

Daniel Schiochet Nasato; Christoph Goniva; Stefan Pirker; Christoph Kloss

Coarse Graining for Large-Scale DEM Simulations of Particle Flow – An Investigation on Contact and Cohesion Models

Daniel Schiochet Nasato
, Christoph Goniva
, Stefan Pirker
, Christoph Kloss

Department of Particulate Flow Modelling

Research output: Chapter in Book/Report/Conference proceeding › Conference proceedings › peer-review

Abstract

In this paper we evaluate the scalability of contact law for a linear spring dashpot (LSD) model. Models are evaluated using a shear test box with Lees-Edwards boundary conditions. Afterwards we extend our analysis for a Hertz model and a limited analysis in cohesive contact model. Results demonstrate that Hertz model has the same behaviour as the scaled LSD model for both inertial and quasi static regime. In coarse graining we expect constant stresses values for different parcels sizes. Both models demonstrate an almost constant stress in the quasi-static regime, but a significant increase is obtained in the inertial regime. A limited number of analysis were also made for a JKR cohesive contact model.

Original language	English
Title of host publication	Proceedings of The 7th World Congress on Particle Technology (WCPT7)
Number of pages	6
Publication status	Published - May 2014

Fields of science

203 Mechanical Engineering

JKU Focus areas

Computation in Informatics and Mathematics
Mechatronics and Information Processing
Engineering and Natural Sciences (in general)

Cite this

@inproceedings{ab0435f7f0254439be06894e37e38004,

title = "Coarse Graining for Large-Scale DEM Simulations of Particle Flow – An Investigation on Contact and Cohesion Models",

abstract = "In this paper we evaluate the scalability of contact law for a linear spring dashpot (LSD) model. Models are evaluated using a shear test box with Lees-Edwards boundary conditions. Afterwards we extend our analysis for a Hertz model and a limited analysis in cohesive contact model. Results demonstrate that Hertz model has the same behaviour as the scaled LSD model for both inertial and quasi static regime. In coarse graining we expect constant stresses values for different parcels sizes. Both models demonstrate an almost constant stress in the quasi-static regime, but a significant increase is obtained in the inertial regime. A limited number of analysis were also made for a JKR cohesive contact model.",

author = "\{Schiochet Nasato\}, Daniel and Christoph Goniva and Stefan Pirker and Christoph Kloss",

year = "2014",

month = may,

language = "English",

booktitle = "Proceedings of The 7th World Congress on Particle Technology (WCPT7)",

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TY - GEN

T1 - Coarse Graining for Large-Scale DEM Simulations of Particle Flow – An Investigation on Contact and Cohesion Models

AU - Schiochet Nasato, Daniel

AU - Goniva, Christoph

AU - Pirker, Stefan

AU - Kloss, Christoph

PY - 2014/5

Y1 - 2014/5

N2 - In this paper we evaluate the scalability of contact law for a linear spring dashpot (LSD) model. Models are evaluated using a shear test box with Lees-Edwards boundary conditions. Afterwards we extend our analysis for a Hertz model and a limited analysis in cohesive contact model. Results demonstrate that Hertz model has the same behaviour as the scaled LSD model for both inertial and quasi static regime. In coarse graining we expect constant stresses values for different parcels sizes. Both models demonstrate an almost constant stress in the quasi-static regime, but a significant increase is obtained in the inertial regime. A limited number of analysis were also made for a JKR cohesive contact model.

AB - In this paper we evaluate the scalability of contact law for a linear spring dashpot (LSD) model. Models are evaluated using a shear test box with Lees-Edwards boundary conditions. Afterwards we extend our analysis for a Hertz model and a limited analysis in cohesive contact model. Results demonstrate that Hertz model has the same behaviour as the scaled LSD model for both inertial and quasi static regime. In coarse graining we expect constant stresses values for different parcels sizes. Both models demonstrate an almost constant stress in the quasi-static regime, but a significant increase is obtained in the inertial regime. A limited number of analysis were also made for a JKR cohesive contact model.

UR - http://www.wcpt7.org/

M3 - Conference proceedings

BT - Proceedings of The 7th World Congress on Particle Technology (WCPT7)

ER -

Coarse Graining for Large-Scale DEM Simulations of Particle Flow – An Investigation on Contact and Cohesion Models

Abstract

Fields of science

JKU Focus areas

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Cite this