| 引用本文: | 阚 飞,胡其德,朱飞鹏,等.基于浅水波方程的水动力模型应用研究[J].灌溉排水学报,2023,42(S1):99-102. |
| KAN Fei,HU Qide,ZHU Feipeng,et al.基于浅水波方程的水动力模型应用研究[J].灌溉排水学报,2023,42(S1):99-102. |
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| 摘要: |
| 以都江堰东风渠灌区某段渠道为研究对象，以守恒型圣维南方程作为天然河道一维非恒定流控制方程，提出了灌区渠道断面几何形状快速变化条件下的变量空间重构方法，推导了基于守恒型圣维南方程的HLLC求解器通量计算式。结果表明，基于浅水波方程的水动力模型在灌区水流推演中具有较好的模拟性能和适应性，不仅可为河网复杂区域的水动力数值模拟提供一种高精度、简便的方法，还可实现对水网复杂区域水流演进的高效预测，为水资源管理与调度提供参考。 |
| 关键词: 浅水波；水动力模型；灌区；预演 |
| DOI：10.13522/j.cnki.ggps.2023064 |
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| 基金项目: |
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| Application of Hydrodynamic Model Based on Shallow Water Wave Equation |
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KAN Fei, HU Qide, ZHU Feipeng, LU Xin, WU Xingchen
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1. Sichuan Research Institute of Water Conservancy, Chengdu 610072, China; 2. Sichuan Dujiangyan Dongfeng Canal
Management Office, Chengdu 610081, China; 3. Chengdu Bingzheng Technology Co., Ltd., Chengdu 610047, China
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| Abstract: |
| Takes a section of Dujiangyan Dongfeng Irrigation Area as the research object, The conservative Saint Venant equation is used as the control equation of one-dimensional unsteady flow in natural river channel. Based on Godunov format, a variable space reconstruction method is proposed under the condition of rapid change of channel section geometry in the irrigation area. The flux calculation formula of HLLC solver based on the conservative Saint Venant equation is derived and applied. The results show that the model has good simulation ability and adaptability in the water flow evolution in the irrigation area, It not only provides a high-precision and simple method for numerical simulation of hydrodynamic forces in complex areas such as irrigation areas, but also can realize reasonable and efficient prediction of water flow evolution in complex areas such as irrigation areas, providing strong support for water resource management and scheduling. |
| Key words: shallow water wave; hydrodynamic model; irrigation area; preview |
