THERMOMECHANICAL MODELLING OF FRICTION EFFECTS IN GRANULAR FLOWS USING THE DISCRETE ELEMENT METHOD

被引：10

作者：

Nguyen, Viet Dung ^{[1
]}

Fortin, Jerome ^{[1
]}

Guessasma, Mohamed ^{[1
]}

Bellenger, Emmanuel ^{[1
]}

Cogne, Claudia ^{[1
]}

机构：

[1] Univ Picardie Jules Verne, Lab Technol Innovantes, EA 3899, IUT Aisne, F-02100 St Quentin en Yvelines, France

来源：

JOURNAL OF MECHANICS OF MATERIALS AND STRUCTURES | 2009年 / 4卷 / 02期

关键词：

heat transfer; contact; conductance; friction; DEM; THERMAL-CONDUCTIVITY; PACKED-BED; SIMULATION; MEDIA;

D O I：

10.2140/jomms.2009.4.413

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：413 / 426

页数：14

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