CHARACTERISTICS OF SUSPENDED SEDIMENT TRANSPORT IN OPEN CHANNEL FLOWS WITH A DEAD ZONE
CHARACTERISTICS OF SUSPENDED SEDIMENT TRANSPORT IN OPEN CHANNEL FLOWS WITH A DEAD ZONE
复制标题
存在死区的明渠水流悬浮泥沙输运特征
DOI：
10.2208/prohe.42.1057
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
Y. Muramoto
中科院分区：
文献类型：
--
作者：
I. Kimura;T. Hosoda;Y. Muramoto
本文通过试验和数值模拟，研究了矩形死区明渠水流的悬沙输移特性。死区沉积物的性质可分为4种类型。通过改变水力条件的室内试验，考察了水力参数对死区淤积形态的影响。采用平面二维流动模型对沉积过程进行了数值模拟。数值结果表明，界面处的大尺度涡旋促进了悬沙向死区的输移。
The characteristics of the suspended sediment transport in the open channel flows with a rectangular dead zone are investigated experimentally and numerically. The properties of the deposition in the dead zone are classified into 4 patterns. The influences of the hydraulic parameters on the deposition patterns in the dead zone are examined through the laboratory test by changing the hydraulic conditions. The deposition processes aresimulated numerically by the plane 2-D flow model. The numerical results indicate that the large scale vortex at the interface promotes the transport of suspended sediment into the dead zone.