| 竖缝宽度对竖缝式鱼道水流结构的影响 |
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| 引用本文： | 张国强,孙双科. 竖缝宽度对竖缝式鱼道水流结构的影响[J]. 水力发电学报, 2012, 31(1): 151-156 |
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| 作者姓名： | 张国强 孙双科 |
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| 作者单位： | 中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京,100038 |
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| 摘 要： | 竖缝式鱼道具有流态稳定、对上下游水位变动自适应性强、过鱼效率高等技术特点,是目前国内外比较流行的鱼道布置方式之一,得到了广泛的工程运用。已有研究表明,影响竖缝式鱼道水流结构的参数主要包括各级水池的长宽比、导板长度、导向角度、以及隔板墩头体型等。本文在已有研究基础上合理取用竖缝式鱼道的长宽比、导板长度、导向角度等参数,采用数值模拟方法,进一步研究了竖缝宽度对水池内水流结构的影响,并给出了其合理取值范围。
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| 关 键 词： | 环境水力学 竖缝式鱼道 数值模拟计算 竖缝宽度 水流结构 单位水体消能率 |
Effect of slot width on the flow structure of vertical slot fishway |
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| ZHANG Guoqiang,SUN Shuangke. Effect of slot width on the flow structure of vertical slot fishway[J]. Journal of Hydroelectric Engineering, 2012, 31(1): 151-156 |
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| Authors: | ZHANG Guoqiang SUN Shuangke |
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| Affiliation: | (State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research,Beijing 100038) |
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| Abstract: | Vertical slot fishway,one of the most popular types in China and the world,is featured by stable flow pattern,self-adaptability to the water level changes in upstream and downstream,and favorable effect for fish species migration,and it has been widely adopted in practice.The literature shows that the flow structures of such a fishway depend on its pool aspect ratio,the length and deflecting angle of baffle plate and the shape of central baffle,etc.In this paper,the effects of slot width on the flow are further studied and the range of design parameters is given. |
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| Keywords: | environment hydraulics vertical slot fishway numerical simulation slot width flow structure volumetric power dissipation |
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