Dispersion process of suspended sediment in turbulent shear flow

M. Sekine*

*この研究の対応する著者

研究成果: Conference contribution

抄録

In this study, numerical simulation of suspended sediment transport was conducted on the basis of an equation of motion in mass point system. LES turbulence model was introduced to simulate a coherent structure of turbulent shear flow which is composed of a series of ejection and sweep. The motion of multiple sediment particles were computed in this flow field, and their trajectories were analyzed statistically. And then a diffusion coefficient of sediment was evaluated numerically on the basis of diffusion theory by Taylor (1953). It was found that the diffusion coefficient of sediments approaches to that of turbulence as the sediments continue to move. This result coincides with the assumption of traditional analysis.

本文言語English
ホスト出版物のタイトルRiver, Coastal and Estuarine Morphodynamics
ホスト出版物のサブタイトルRCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics
ページ485-490
ページ数6
出版ステータスPublished - 2008 12 1
イベント5th IAHR-Symposium on River, Coastal and Estuarine Morphodynamics, RCEM 2007 - Enschede, Netherlands
継続期間: 2007 9 172007 9 21

出版物シリーズ

名前River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics
1

Conference

Conference5th IAHR-Symposium on River, Coastal and Estuarine Morphodynamics, RCEM 2007
国/地域Netherlands
CityEnschede
Period07/9/1707/9/21

ASJC Scopus subject areas

  • 生態学
  • 環境工学

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