Mechanics of saltating grains. II

Masato Sekine, Hideo Kikkawa

研究成果: Article

133 引用 (Scopus)

抄録

A numerical model of saltation akin to those of previous researchers is presented to investigate the detailed nature of bed load motion in terms of the mechanics of saltation. The model is deterministic in the computation of particle trajectory, but probabilistic in terms of bed collision. This probabilistic element arises from the random structure of the bed. In the present analysis, a stochastic treatment of collision allows for a fairly complete model of saltation in water. Characteristic quantities, including the sediment transport rate itself, are derived and compared with experimental data. The model yields good agreement with data with a minimum of assumptions. The assumed three-dimensional random structure of the bed is a unique feature of the present model. It allows for the prediction of several phenomena that cannot be obtained via the assumption of a regular two-dimensional bed structure.

元の言語English
ページ(範囲)536-558
ページ数23
ジャーナルJournal of Hydraulic Engineering
118
発行部数4
出版物ステータスPublished - 1992 4
外部発表Yes

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saltation
mechanics
Mechanics
collision
Sediment transport
bedload
sediment transport
Numerical models
trajectory
Trajectories
prediction
Water
water

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanical Engineering
  • Water Science and Technology
  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

これを引用

Mechanics of saltating grains. II. / Sekine, Masato; Kikkawa, Hideo.

:: Journal of Hydraulic Engineering, 巻 118, 番号 4, 04.1992, p. 536-558.

研究成果: Article

Sekine, M & Kikkawa, H 1992, 'Mechanics of saltating grains. II', Journal of Hydraulic Engineering, 巻. 118, 番号 4, pp. 536-558.
Sekine, Masato ; Kikkawa, Hideo. / Mechanics of saltating grains. II. :: Journal of Hydraulic Engineering. 1992 ; 巻 118, 番号 4. pp. 536-558.
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