| 程晓陶,蓝虹,李娜,张永,薛云鹏.黄河下游花园口～孙口河段水沙运动仿真模型开发研究[J].水利学报,1999,30(7):0053-0060 |
| 黄河下游花园口～孙口河段水沙运动仿真模型开发研究 |
| A 2 D numerical model for simulation of flood routing and sediment transport inHuayuankou Sunkou reach of the Yellow River |
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| DOI： |
| 中文关键词: 黄河下游 水沙运动 数值模拟 |
| 英文关键词: lower reach Yellow River flow propagation sediment transport numerical simulation |
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| 摘要点击次数: 2070 |
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| 中文摘要: |
| 黄河下游洪水演进受滩槽冲淤、生产堤状况与滩地调蓄作用的影响非常显著。花园口～孙口河段水沙运动仿真模型以二维不恒定流与不平衡输沙理论为基础，采用无结构不规则网格，分段建模，联接运行，能较好适应河势的变化。模型具备动态图象显示和人机对话功能，可在计算中较好模拟生产堤溃决或抢险堵口加高等现象。模型对滩槽冲淤具有一定的自调节的能力，增强了模型对黄河来水来沙变幅大的适应能力。模型以“82.8”与“96.8”两场洪水的实测资料作了验证，结果吻合良好。 |
| 英文摘要: |
| Based on the theories of 2 D unsteady flow and non equilibrium sediment transport, a 2 D numerical model for the simulation of flood routing and sediment transport along the lower reach of Yellow River is developed with non structural irregular grids. The calculated field of the model covers the main channel and floodplain from Huayuankou to Sunkou with a total length of 310km and area of 1340km2. The model is consisted of three section which operate as a whole. It possesses a plotting function and an interface that prompts the position and information of the dike when overflow occurred and allows the user to change the state of the dike. The model has a self regulation capability of scour and silt to suit the large variable range of flow and sediment content. The calculation procedure is checked by the observed data of two floods. |
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