长江科学院院报 ›› 2006, Vol. 23 ›› Issue (6): 6-8.

• 水力学 • 上一篇    下一篇

大型调水工程多河流洪水演进数值模拟研究

 黄明海, 黄国兵   

  • 出版日期:2006-12-01 发布日期:2012-03-05

Numerical Simulation of Flood Progression with Multi-Riverin Large Water Transfer Project

 HUANG  Ming-Hai, HUANG  Guo-Bing   

  • Online:2006-12-01 Published:2012-03-05

摘要: 根据大型调水工程总干渠与沿程河流交叉情况、总干渠线路布置及交叉河流洪水过程等特性,建立了多河流二维洪水演进数学模型。并将其应用于模拟某大型调水工程总干渠左侧7条河流300年一遇的洪水演进过程。模拟过程中对坐标变换、网格划分、数值离散、动水边界及干床处理、计算成果可视化等关键技术问题进行了研究,并提出了相应的处理方法。计算分析了与总干渠交叉的各河流洪水演进过程、交叉断面水位变化过程和总干渠左侧洪水水面线等。并对计算成果数据进行了动态可视化处理,生动地显示了洪水演进的全过程。计算的各河流洪水过程和最高洪水位为工程设计提供了科学的参考依据。

Abstract: According to the properties of the cross-over between the general canal and the rivers,the layout of the general canal and the flood characteristics,a 2D flood routing mathematical model is established. This mathematical model has applied for the general canal of a large water transfer project with seven crossing rivers located its left side and the flood routing with the 300-year frequency flood is calculated. Key techniques including coordinate transformation, grid generation, numerical separation, treatments of movable boundary and dry land, visualization of calculated results are studied and introduced. And the pictures of the flood routing are demonstrated by visualization of calculated results.The characteristies of water level in each river lying to the left side of the general canal are analyzed, and calculated data for the design of the water transfer project are offered.