| 引用本文: | 毛祥明,武国正,任春涛.寒冷地区水库水环境数值模拟研究[J].灌溉排水学报,2023,42(12):157-164. |
| MAO Xiangming,WU Guozheng,REN Chuntao.寒冷地区水库水环境数值模拟研究[J].灌溉排水学报,2023,42(12):157-164. |
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| 摘要: |
| 【目的】揭示寒冷地区季节性冰封水库明水期和冰封期的水动力与水质变化规律。【方法】以中国北方寒冷地区平原型水库—新立城水库为研究对象，基于水环境流体动力学，构建三维水动力水质模型，对一个完整水期（包括明水期和冰封期）的水温和总磷（TP）浓度进行模拟，对模型参数进行率定和验证。【结果】水库水位模拟值与实测值之间的平均相对误差（MRE）为4.47%，水温的MRE为12.5%，TP浓度在3个采样点的MRE均小于20%。【结论】三维水动力水质模拟结果能够客观反映新立城水库水动力、水温和TP浓度在明水期和冰封期的变化过程，可为水库水环境管理提供参考依据。 |
| 关键词: 寒冷地区；水库；水环境；数值模拟 |
| DOI：10.13522/j.cnki.ggps.2023270 |
| 分类号: |
| 基金项目: |
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| Numerical Simulation of Reservoir Water Environment in Cold Regions |
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MAO Xiangming, WU Guozheng, REN Chuntao
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1. Panzhihua University, Panzhihua 617000, China; 2. School of Geographical Sciences, China West Normal University,
Nanchong 637009, China; 3. Guokechuang Beijing Information Technology Co. Ltd, Beijing 100070, China;
4. Hohhot Fengze Water Conservancy Survey and Design Co., LTD, Hohhot 010000, China
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| Abstract: |
| 【Objective】Using a water environment numerical model to study the process of hydrodynamic and water quality changes in a seasonal ice-covered reservoir, revealing the variation patterns during the open water and ice-covered periods. 【Method】In this paper, Xinlicheng Reservoir, a plain reservoir in the cold region of northern China, is taken as the research object, and a three-dimensional hydrodynamic water quality model is built based on water environment hydrodynamics. The water temperature and TP concentration of a complete water period which include open water stage and ice-covered stage were simulated and analyzed, and the parameters of the model were calibrated and validated. 【Result】The statistical analysis results show that the mean relative error (MRE) between the simulated and measured water level values of Xinlicheng Reservoir is 4.47%, and the water temperature MRE value was 12.5%. The MRE values of TP concentration at all three sampling points are less than 20%. 【Conclusion】The research results can objectively reflect the changes in hydrodynamics force，water temperature and TP concentration of Xinlicheng Reservoir during the open water and ice covered periods, and can provide reliable reference and application value for the water environment management of Xinlicheng Reservoir. |
| Key words: cold region; reservoir; water environment; numerical stimulation |
