Simulations of granular flow along an inclined plane using the Savage

Fei, M., Sun, Q., Zhong, D., & Zhou, G. G. D. (2012). Simulations of granular flow along an inclined plane using the Savage–Hutter model. Particuology, 10(2), 236–241. https://doi.org/10.1016/j.partic.2011.11.007

Simulations of granular flow along an inclined plane using the Savage–Hutter model

Minglong Fei ^a, Qicheng Sun ^a *, Deyu Zhong ^a, Gordon G.D. Zhou ^b

a State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China
b Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China

10.1016/j.partic.2011.11.007

Volume 10, Issue 2, April 2012, Pages 236-241

Received 28 July 2011, Revised 16 November 2011, Accepted 26 November 2011, Available online 5 March 2012.

E-mail: qcsun@tsinghua.edu.cn

Highlights

► A velocity-dependent friction is introduced into a depth-averaging Savage–Hutter dynamical model for shallow granular flows.

► The evolution of various types of energies is investigated.

► The standard Coulomb-type friction shows acceptable accuracy in describing natural granular flows.

Abstract

In this work a velocity-dependent friction is introduced into a depth-averaged Savage–Hutter dynamical model for shallow granular flows. The process of granular material flowing along an inclined plane and then depositing on a horizontal plane is simulated. The surface profiles and evolution of various types of energy are investigated and compared when using the standard Coulomb-type friction versus velocity-dependent friction. Interestingly, there is a small difference between the two different types of friction.

Graphical abstract

Keywords

Granular flows; Dynamics friction; Savage–Hutter model

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