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Collisional Granular Flow on a Rough Slope and its Instability

In: Traffic and Granular Flow’01

Author

Listed:
  • 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)

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.

Suggested Citation

  • N. Mitarai & H. Nakanishi & H. Hayakawa, 2003. "Collisional Granular Flow on a Rough Slope and its Instability," Springer Books, in: Minoru Fukui & Yuki Sugiyama & Michael Schreckenberg & Dietrich E. Wolf (ed.), Traffic and Granular Flow’01, pages 485-490, Springer.
    • Handle: RePEc:spr:sprchp:978-3-662-10583-2_50
    DOI: 10.1007/978-3-662-10583-2_50
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