| 关于河道一维非恒定流水温预测模型的研究 |
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| 引用本文： | 郝红升,李克锋,庄春义.关于河道一维非恒定流水温预测模型的研究[J].四川大学学报(自然科学版),2005,42(6):1189-1193. |
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| 作者姓名： | 郝红升 李克锋 庄春义 |
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| 作者单位： | 1. 四川大学水力学与山区河流开发保护国家重点实验室,成都,610065
2. 四川省水利水电勘测设计研究院,成都,610072 |
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| 基金项目： | 国家自然科学基金（50279025） |
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| 摘 要： | 作者在全面地分析影响河道水温变化各种因素的基础上，根据大渡河流域实测资料所推荐的有关计算纵向离散系数的经验公式．确定了一种适宜于河道一维非恒定流水温的预测模型．作者运用此模型预测了水库下泄低温水、火电厂温排水对下游水环境的影响及其应用价值，其结果可为制定水库生态用水调度方案和流域开发的环境影响评价提供科学依据．
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| 关 键 词： | 非恒定流 水温 模型预测 纵向离散系数 |
| 文章编号： | 0490-6756（2005）06-1189-05 |
| 收稿时间： | 2005-07-12 |
| 修稿时间： | 2005-07-122005-09-16 |
Study on 1-D Water Temperature Forecast Model of River Unsteady Flow |
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| HAO Hong-sheng,LI Ke-feng,ZHUANG Chun-yi.Study on 1-D Water Temperature Forecast Model of River Unsteady Flow[J].Journal of Sichuan University (Natural Science Edition),2005,42(6):1189-1193. |
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| Authors: | HAO Hong-sheng LI Ke-feng ZHUANG Chun-yi |
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| Institution: | 1. State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China; 2. Water Resources and Hydropower Investigation, Design and Research Institute of Sichuan Province, Chengdu 610072, China |
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| Abstract: | Various factors affecting the water temperature of river are analyzed and summarized.The equations of Saint-Venant and the convection & diffusion equation is presented to established a mathematical model for predicating water temperature of the natural river.Besides,an experiential formula for calculating the longitudinal diffusion coefficient is recommended in accordance with the real data of Daduhe River.It is more valuable for predict the influence resulting from the discharged water with low temperature of reservoir or with warm temperature of fire-electric power station on the downstream water environment by using the model.The result of this study will provide theoretical base for establishing operation plan of water for ecosystem and can provide the scientific foundation for environmental impact assessment of river basin development. |
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| Keywords: | unsteady flow water-temperature forecast model longitudinal diffusion coefficient |
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