| 黄河下游限制弯曲段河道冲淤数学模型 |
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| 引用本文： | 何青,万兆惠.黄河下游限制弯曲段河道冲淤数学模型[J].水科学进展,1994,5(2):119-125. |
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| 作者姓名： | 何青 万兆惠 |
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| 作者单位： | 1.华东师范大学河口海岸研究所 上海200062; |
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| 基金项目： | 黄河水利委员会科学基金 |
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| 摘 要： | 模型对黄河下游特有的来水来沙条件及河床边界条件下的河道冲淤规律进行了模拟。根据不平衡输沙理论,结合天然河道实际情况,将河道断面进行滩槽划分,采用综合阻力公式反映水沙条件变化,沉速计算考虑了含沙量特别是细颗粒影响,模型可应用于高含沙水流。验证结果与实测资料基本符合。
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| 关 键 词： | 泥沙输移 冲刷 淤积 数学模型 |
| 收稿时间： | 1992-07-15 |
A Mathematical Model for Fluvial Erosions and Deposits Processes of the Lower Yellow River |
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| He Qing,Wan Zhaohui.A Mathematical Model for Fluvial Erosions and Deposits Processes of the Lower Yellow River[J].Advances in Water Science,1994,5(2):119-125. |
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| Authors: | He Qing Wan Zhaohui |
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| Institution: | 1.East China Normal University, Shanghai 200062;2.Institute of Water Conservancy and Hydroelectric Power Research, Beijing 100044 |
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| Abstract: | Based on the study of nonequilibrium transportation, a one-dimentional mathematical model for fluvial erosions and deposits processes of the Lower Yellow River is formulated. Some problems, such as flow resistance, settling velocity, sediment tarring capacity and coflicient of recovery, are discussed in this paper. The different behaviour of the main channel and flood plain has taken into consideration. The results of the simulation, such as water level, roughness, thickness of erosion or deposition, size constituent of suspended load and bad load etc, are satisfied. comparing with the field data. |
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| Keywords: | sediment transporting erosion deposit mathematic model |
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