| 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在灌区的应用研究[J].灌溉排水学报,,():-. |
| KAN Fei,HU Qide,ZHU Feipeng,et al.基于浅水波方程的水动力模型在灌区的应用研究[J].灌溉排水学报,,():-. |
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| 摘要: |
| 以都江堰东风渠灌区某段为研究对象，采用守恒型圣维南方程作为天然河道一维非恒定流控制方程，基于Godunov格式，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求解器通量计算公式并进行应用研究，结果表明本模型在灌区水流演进中具有较好的模拟能力和适应性，不仅为灌区等河网复杂区域水动力数值模拟提供一种高精度、简便的方法，还可实现对灌区等水网复杂区域水流演进的合理高效预测，为水资源管理与调度及防洪、水资源“四预”（预报、预警、预演、预案）提供有力支撑。 |
| 关键词: 浅水波；水动力模型；灌区；预演 |
| DOI： |
| 分类号:TV133 |
| 基金项目:四川省水利厅科技专项东风渠梁江堰水资源智能化调配与智慧水网构建关键技术研究(川水科2020019号)、四川省水利厅科技专项四川省水利信息资源整合共享关键技术应用研究(2022-17-2060499)、。 |
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| Application of hydrodynamic model based on shallow water wave equation in irrigation district |
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KAN Fei1, HU Qide2, ZHU Feipeng2, LU Xin1, WU Xingchen3
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1.Sichuan Research Institute of Water Conservancy;2.Sichuan Dujiangyan Dongfeng Canal Management Office;3.Chengdu Bingzheng Technology Co., Ltd
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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, flood control and "four pre" (prediction, early warning, rehearsal and pre plan) of water resources. |
| Key words: Shallow water wave; Hydrodynamic model; Irrigation area; preview |
