Formation process of depositional landform over a permeable flat plain

M. Ogasawara, M. Sekine

研究成果: Conference contribution

抜粋

The formation process of depositional landform over a one-dimensional permeable flat plain was investigated numerically in this paper. In such a process, a water exchange between a surface flow and a subsurface flow is important to be taken into account. The governing equations of the flows are one-dimensional shallow water equations for surface flow, and two-dimensional Richards' equation for subsurface flow. As a result of this study, the following two processes were confirmed: (a) a front of surface flow migrates a little in the downstream direction due to the loss of surface-flow discharge, and the thickness of the depositional landform increases; (b) the front migrates with relatively high speed due to the recovery of surface-flow discharge, and the depositional landform spread in the downstream direction.

元の言語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885-890
ページ数6
出版物ステータス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
2

Conference

Conference5th IAHR-Symposium on River, Coastal and Estuarine Morphodynamics, RCEM 2007
Netherlands
Enschede
期間07/9/1707/9/21

ASJC Scopus subject areas

  • Ecology
  • Environmental Engineering

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  • これを引用

    Ogasawara, M., & Sekine, M. (2008). Formation process of depositional landform over a permeable flat plain. : River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics (pp. 885-890). (River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics; 巻数 2).