Discrete Element Simulation of Collision-Rich Dynamics of Wet Granular Flows Down an Inclined Channel

CHANG Wei-Tze; HSIEH Shang-Hsien; YANG Fu-Ling; CHEN Chuin-Shan

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Discrete Element Simulation of Collision-Rich Dynamics of Wet Granular Flows Down an Inclined Channel

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This paper proposes a numerical scheme that employs the discrete element method (DEM) to simulate the motion of a wet granular flow down an inclined channel.To account for the liquid influences on the dynamics between paired particles,this paper presents a wet soft-sphere contact model with liquid-modified parameters.The developed scheme takes full advantage of DEM and avoids the expensive simula-tion of the solid-liquid interactions with conventional Navier-Stokes equation solver.This wet contact model has been implemented in an in-housed parallel discrete objects simulation system-KNIGHT and ANNE/IRIS口to compute the dynamic behaviors of both dry and wet granular particles flowing down an in-dined channel.

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《清华大学学报（英文版）》 |2008年第z1期|90-95|共6页
作者
CHANG Wei-Tze; HSIEH Shang-Hsien; YANG Fu-Ling; CHEN Chuin-Shan;
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作者单位

Department of Civil Engineering,Taiwan University,Taipei 10617;

Department of Civil Engineering,Taiwan University,Taipei 10617;

Department of Mechanical Engineering,Taiwan University,Taipei 10617;

Department of Civil Engineering,Taiwan University,Taipei 10617;

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原文格式 PDF
正文语种 chi
中图分类计算技术、计算机技术;
关键词
discrete element method; wet granular flow; contact model; interaction model;

机译：离散元法;湿颗粒流;接触模型;相互作用模型;

Discrete Element Simulation of Collision-Rich Dynamics of Wet Granular Flows Down an Inclined Channel

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