| 西山遮挡对滇池风生流影响的数值模拟 |
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| 引用本文： | 李术军,刘树坤,李锦秀.西山遮挡对滇池风生流影响的数值模拟[J].湖泊科学,1998,10(1):5-10. |
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| 作者姓名： | 李术军 刘树坤 李锦秀 |
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| 作者单位： | 中国水利水电科学研究院水力学研究所!北京100038 |
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| 摘 要： | 对于湖泊风生流的模拟，湖 面风场数据是决定精度高低的关键因素， 而湖泊周围的山地等复杂地势常常引起湖面风速风向的不均匀分布,致使湖流流态因地形因素而变化较大,本文建立了一个适合于湖泊区域的中小尺度三维过山气流数值模型,用以计算受山体遮挡的风场合沿水深平均的二维湖泊风生流数值模型模拟了实际地形条件下的滇池风生流,并与均匀风
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| 关 键 词： | 风场 遮挡 滇池 风生流 数值模拟 湖泊 |
| 收稿时间： | 1997/2/10 0:00:00 |
| 修稿时间： | 1997/6/16 0:00:00 |
Numerical Simulation of Influence of Hilly Relief on Wind..Driven Current in Dianchi Lake |
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| Li Shujun,Liu Shukun and Li Jinxiu.Numerical Simulation of Influence of Hilly Relief on Wind..Driven Current in Dianchi Lake[J].Journal of Lake Science,1998,10(1):5-10. |
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| Authors: | Li Shujun Liu Shukun and Li Jinxiu |
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| Institution: | China Institute of Water Resources and Hydropower Research, Beijing 100038,China Institute of Water Resources and Hydropower Research, Beijing 100038 and China Institute of Water Resources and Hydropower Research, Beijing 100038 |
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| Abstract: | When sirnulating the wind-driven flow of a lake, the wind field above the water surface is a key factor that influences the precision. The complicated terrains arount a lake, such as mountains, often result in unsymmetrical distribution of wind velocity and direction above lake surface,so water flow pattern must be changed by the terrains. In this paper, a 3-D mlcro-meteorology model for lake scale is built up to Compute local wind affected by the shelter of hilly terrains.Based on this, the flow pattern of Dianchi Lake under real terrain conditions is simulated with a 2D wind-driven current model, nnd the flow pattern in this case is compared to the flow fields under uniform wind and artificially modified wind respectively. The result shows that if the winddriven flow in Dianchi Lake is simulated after obtaining the local wind field according with real meteorological characters of lake area from the meteorology model, the simulation result can accurately reflect the general character of water movement in Dianchi Lake. |
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| Keywords: | Wind field shelter Dianchi Lake wind-driven current numerical simlation |
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