| 穆祥鹏,陈文学,崔 巍,郭晓晨.南水北调中线工程冰期输水特性研究[J].水利学报,2011,42(11): |
| 南水北调中线工程冰期输水特性研究 |
| Study on the characteristics of flow in Middle Route of South-to-North Water Transfer Project during freezing period |
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| DOI： |
| 中文关键词: 冰水力学 冰期输水 南水北调中线工程 数值模拟 |
| 英文关键词: ice hydraulics water transfer in freezing period Middle Route of South-to-North Water Transfer Project numerical simulatio |
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| 中文摘要: |
| 应用水力学、冰水力学和传热学等理论，通过建立渠道的气、水、冰的热传导方程，水温控制方程，水流运动、浮冰输移及冰盖发展方程，构建了南水北调中线干渠的一维冰期输水模型。该模型不仅考虑了渠道拦冰索对流冰的控制条件，以及穿黄隧洞等地下结构的地温影响，还通过加入闸门控制算法，模拟了渠道中闸门对水位和流量的调控作用，使得数值模拟结果更能符合工程的实际情况。利用此建立的模型，对该工程黄河以北干渠的冰期输水过程进行了模拟，分析了渠道的冰情特性，研究了冰期渠道的水力响应特性，并提出了渠道冰害防治和运行控制等方面的建议。 |
| 英文摘要: |
| A one dimensional water flow model for the Middle Route of South-to-North Water Diversion Project in freezing period is suggested based on hydrodynamics，river ice hydraulics and thermodynamics. In the model，the flow characteristics of main canal，effect of ice preventing measures and thermal effect of underground constructions，such as tunnels and inverted siphons，are considered. Fur-thermore the effect of control gates on water level and flow discharge of the canal are also taken into account. The water trans?
fer process of north section of the Project（north of the Yellow River）in freezing period is numerical simulated by using this model. The forecasting of the ice regime of the Project is given and the measures for preventing the ice damages are suggested. |
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