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Thermomechanical
modelling of friction effects in granular flows using the
discrete element method
Viet Dung Nguyen, Jérôme Fortin, Mohamed Guessasma, Emmanuel Bellenger and Claudia Cogné |
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Vol. 4 (2009), No. 2, 413–426
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Abstract |
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This study deals with the modelling of the thermomechanical phenomena due to friction effects during granular flow. A two-dimensional model using the discrete element method (DEM) and taking into account the contact detection and heat transfers between grains has been developed. Through this study, we have modelled the heat transfer by conductance and the energy dissipation by friction into a granular medium. This modelling enables better understanding of the phenomena at the contact point between grains as well as the energy dissipation by friction of a great number of grains in motion. The validity of the proposed model has been studied by considering some numerical simulations in quasistatic and dynamic regimes. |
Keywords
heat transfer, contact, conductance, friction, DEM
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Milestones
Received: 17 December 2007
Accepted: 7 March 2008
Published: 12 April 2009
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Authors |
| Viet Dung Nguyen | |
| Laboratoire des Technologies
Innovantes (EA 3899) Université de Picardie Jules Verne IUT de l’Aisne 02100 Saint Quentin France |
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| Jérôme Fortin | |
| Laboratoire des Technologies
Innovantes (EA 3899) Université de Picardie Jules Verne IUT de l’Aisne 02100 Saint Quentin France |
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| Mohamed Guessasma | |
| Laboratoire des Technologies
Innovantes (EA 3899) Université de Picardie Jules Verne IUT de l’Aisne 02100 Saint Quentin France |
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| Emmanuel Bellenger | |
| Laboratoire des Technologies
Innovantes (EA 3899) Université de Picardie Jules Verne IUT de l’Aisne 02100 Saint Quentin France |
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| Claudia Cogné | |
| Laboratoire des Technologies
Innovantes (EA 3899) Université de Picardie Jules Verne IUT de l’Aisne 02100 Saint Quentin France |
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