Mechanics of saltating grains. II

Masato Sekine, Hideo Kikkawa

研究成果: Article査読

140 被引用数 (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.

本文言語English
ページ(範囲)536-558
ページ数23
ジャーナルJournal of Hydraulic Engineering
118
4
DOI
出版ステータスPublished - 1992 4
外部発表はい

ASJC Scopus subject areas

  • 土木構造工学
  • 水の科学と技術
  • 機械工学

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