Force Propagation of Flow of Granular Materials through an Orifice in Start up Stage

Hai Ping Zhu; Bo Shi Xia; Ai Bing Yu

doi:10.4028/www.scientific.net/AMM.249-250.807

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 249-250Force Propagation of Flow of Granular Materials...

Force Propagation of Flow of Granular Materials through an Orifice in Start up Stage

Abstract:

In this paper, early stage of granular materials flowing through the orifice of a cuboid hopper with flat bottom is investigated based on the results generated by using the discrete element method. The results show that in the start up stage of the flow, a switch curve is formed between static and flowing particles, and a force arch on which the forces are very small is generated below the switch curve. Both curves propagate into the granular bed with the discharge of particles, and reach the top of the bed when a steady state is achieved.

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Applied Mechanics and Materials (Volumes 249-250)

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807-811

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https://doi.org/10.4028/www.scientific.net/AMM.249-250.807

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Online since:

December 2012

Authors:

Hai Ping Zhu, Bo Shi Xia, Ai Bing Yu

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Discrete Element Method (DEM), Granular Mechanics, Hopper, Particle Flow, Simulation

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