Collisional Granular Flow on a Rough Slope and its Instability

N. Mitarai, H. Nakanishi and H. Hayakawa
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N. Mitarai: Kyushu University 33, Department of Physics
H. Nakanishi: Kyushu University 33, Department of Physics
H. Hayakawa: Kyoto University, Graduate School of Human and Environmental Studies

A chapter in Traffic and Granular Flow’01, 2003, pp 485-490 from Springer

Abstract: Abstract Granular flow on a rough slope in the collisional flow region is investigated by numerical simulations. It is demonstrated that the uniform flow is only metastable; it is maintained for a while, but fluctuations trigger clustering of particles eventually. The micropolar fluid model is employed to analyze the properties of uniform flow. It is shown that the model can reproduce the deviation of the angular velocity field from the rotation of the velocity field.

Keywords: Discrete Element Method; Uniform Flow; Granular Flow; Micropolar Fluid; High Density Region (search for similar items in EconPapers)
Date: 2003
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-662-10583-2_50

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DOI: 10.1007/978-3-662-10583-2_50

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