PDF(1994 KB)
PDF(1994 KB)
PDF(1994 KB)
同侧竖缝式鱼道结构优化数值模拟研究
Numerical Simulation to Optimize the Structure of Ipsilateral Vertical Slot Fishway
鱼道是保证鱼类能顺利洄游的过鱼设施。通过竖缝相对宽度分别为0.05,0.10,0.15,0.30,底坡为10%的鱼道模型进行数值计算。采用可视化显示及数据分析的方法分析不同竖缝相对宽度、底坡条件下的同侧竖缝式鱼道的水流结构特征。通过模型模拟,分析水流沿水深方向的流速分布情况、主流区最大流速沿程分布及沿程衰减情况,以及在不同竖缝相对宽度和(或)不同流速情况下的紊动能分布情况。综合各物理量的分析,得出竖缝相对宽度b0/B=0.15、底坡为10%时,水流在池室内能形成较好的适合鱼类洄游的流态:主流区水流横向扩散范围适中,主流区最大流速沿程均匀衰减,回流区面积较为对称,流速较小。
The flow structure in ipsilateral vertical slot fishway is researched by changing the relative width of vertical slot (0.05, 0.10, 0.15, 0.30) and bottom slope 10% in a fishway model. Visual display and data analysis are adopted in the research. Through the simulation, the flow velocity distribution along water depth, the frictional distribution and attenuation of maximum flow velocity in mainstream area, as well as the turbulence kinetic energy distribution in the presence of different relative slot width and different flow velocity are obtained. Results reveal that when vertical slot width b0/B=0.15 and bottom slope is 10%, flow pattern favorable for fish migration could be formed in the pool: the range of transverse diffusion of flow in mainstream area is moderate, the maximum flow velocity in the mainstream area attenuates uniformly along the way, and the backflow area is symmetrical with small flow velocity.
三维数值模拟 / 同侧竖缝式鱼道 / 流速分布 / 雷诺应力模型 / 竖缝相对宽度
there-dimensional numerical simulation / ipsilateral vertical slot fishway / flow velocity distribution / Reynolds stress model / relative width of vertical slot
[1] BATES K. Fishway Guidelines for Washington State. Washington: Washington Department of Fish and Wildlife, 2000.
[2] 王桂华,夏自强.鱼道规划设计与建设的生态学方法研究.水利与建筑工程学报,2007,5(4):7-12. (WANG Gui-hua, XIA Zi-qiang. Study on Designing and Building of Fishways by Using Ecological Way . Journal of Water Resources Architectural Engineering, 2007, 5(4):7-12. (in Chinese))
[3] BARTON A F, KELLER R J. 3D Free Surface Model for a Vertical Slot Fishways∥Proceedings of the 30th IAHR World Congress. Thessaloniki, Greece, August 24-29,2003:489-496.
[4] GUINY E, ERVINE A, ARMSTRONG J D. Hydraulic and Biological Aspects of Fish Passes for Atlantic Salmon. Journal of Hydraulic Engineering, ASCE, 2005,131(7): 542-553.
[5] TARRADE L, TEXIER A,DAVID L, et al. Topologies and Measurements of Turbulent Flow in Vertical Slot Fishways. Hydrobiologia,2008,609(1):177-188.
[6] 孙双科,邓明玉,李英勇.北京市上庄新闸竖缝式鱼道的水力设计研究∥第三届全国水力学与水利信息学大会论文集.南京:河海大学出版社,2007:348-353. (SUN Shuang-ke, DENG Ming-yu, LI Ying-yong. Research on Hydraulic Design of Vertical Slot Fishway on Shangzhuang New Sluice in Beijing ∥Proceedings of the Third National Conference on Hydraulic and Water Conservancy Informatics. Nanjing: Hohai University Press, 2007: 348-353. (in Chinese))
[7] 董志勇,冯玉平, ERVINE A.同侧竖缝式鱼道水力特性及放鱼试验研究.水利发电学报, 2008, 27(6):121-125. (DONG Zhi-yong, FENG Yu-ping, ERVINE A. An Experimental Study of Hydraulic Characteristics and Fish Test in Vertical Slot Fishway to One Side . Journal of Hydroelectric Engineering, 2008, 27(6): 121-125. (in Chinese))
[8] RAJARATNAM N, KATOPODIS C, SOLANSKI S. New Designs for Vertical Slot Fishways. Canadian Civil Engineering, 1992, 19(3): 402-414.
[9] 罗小凤,李 嘉.竖缝式鱼道结构及水力特性研究.raybet体育在线
院报, 2010, 27(10):50-54. (LUO Xiao-feng, LI Jia. Study on Structure and Hydraulic Characteristics of Vertical-Slot Fishway . Journal of Yangtze River Scientific Research Institute, 2010, 27(10): 50-54. (in Chinese))
[10] SMITH D L, BRANNON E L, SHAFII B, et al. Use of the Average and Fluctuating Velocity Components for Estimation of Volitional Rainbow Trout Density. Transactions of American Fisheries Society, 2006, 135(2): 431-441.
[11] 王兴勇,郭 军.国内外鱼道研究与建设.中国水利水电科学研究院学报, 2005,9(3):222-228. (WANG Xing-yong, GUO Jun. Brief Review on Research and Construction of Fish-ways at Home and Abroad. Journal of China Institute of Water Resources and Hydropower Research, 2005, 9(3):222-228. (in Chinese))
[12] 曹庆磊,杨文俊,陈 辉.同侧竖缝式鱼道水力特性的数值模拟.raybet体育在线
报, 2010, 27(7):26-30. (CAO Qing-lei, YANG Wen-jun, CHEN Hui. Numerical Simulation of Characteristics of Vertical Slot fishway on Same One Side . Journal of Yangtze River Scientific Research Institute, 2010, 27(7): 26-30.(in Chinese))
/
| 〈 |
|
〉 |