A213 河川における浮遊微細粒子の輸送について(A-21 河川における移動床流れ(1),一般講演)
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概要
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In most of the existing models of suspended sediment transport, the fine sediment is assumed to be abundant on the bed. This is not the case in most of actual rivers. Once most of fine sediment on the bed is removed from the bed, the entrainment rate is reduced due to the lack of fine sediment on the bed. This study proposes a new transport model of fine suspended solids in rivers. The model takes into account of the variation of the amount of fine particles on the bed by introducing an availability function and the continuity equation of fine particles on the bed. The model is applied to SS data obtained in a field observation during a small flood. It is found that the proposed model describes the behavior of the SS concentration considerably well compared with an existing model.
- 日本流体力学会の論文
- 2004-08-09
著者
関連論文
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