Dispersion process of suspended sediment in turbulent shear flow

M. Sekine

Dispersion process of suspended sediment in turbulent shear flow

M. Sekine^*

^*Corresponding author for this work

School of Creative Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

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.

Original language	English
Title of host publication	River, Coastal and Estuarine Morphodynamics
Subtitle of host publication	RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics
Pages	485-490
Number of pages	6
Publication status	Published - 2008 Dec 1
Event	5th IAHR-Symposium on River, Coastal and Estuarine Morphodynamics, RCEM 2007 - Enschede, Netherlands Duration: 2007 Sept 17 → 2007 Sept 21

Publication series

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

Conference

Conference	5th IAHR-Symposium on River, Coastal and Estuarine Morphodynamics, RCEM 2007
Country/Territory	Netherlands
City	Enschede
Period	07/9/17 → 07/9/21

ASJC Scopus subject areas

Ecology
Environmental Engineering

Cite this

Sekine, M. (2008). Dispersion process of suspended sediment in turbulent shear flow. In River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics (pp. 485-490). (River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics; Vol. 1).

Dispersion process of suspended sediment in turbulent shear flow. / Sekine, M.
River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics. 2008. p. 485-490 (River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Sekine, M 2008, Dispersion process of suspended sediment in turbulent shear flow. in River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics. River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics, vol. 1, pp. 485-490, 5th IAHR-Symposium on River, Coastal and Estuarine Morphodynamics, RCEM 2007, Enschede, Netherlands, 07/9/17.

Sekine M. Dispersion process of suspended sediment in turbulent shear flow. In River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics. 2008. p. 485-490. (River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics).

Sekine, M. / Dispersion process of suspended sediment in turbulent shear flow. River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics. 2008. pp. 485-490 (River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics).

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Dispersion process of suspended sediment in turbulent shear flow

Abstract

Publication series

Conference

ASJC Scopus subject areas

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