Three-dimensional characteristics analysis of flow in trapezoidal fishway

doi:10.3876/j.issn.1000-1980.2023.01.008

Home > Archive>Volume 51, Issue 1, 2023 >61-65, 76. DOI:10.3876/j.issn.1000-1980.2023.01.008

Three-dimensional characteristics analysis of flow in trapezoidal fishway
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                        10.3876/j.issn.1000-1980.2023.01.008
                    
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Affiliation:(1.Nanjing Jiangbei New Area Ecological Environment and water Bureau, Nanjing 210031, China;2.Hydraulic Engineering Department of Nanjing Hydraulic Research Institute, Nanjing 210029, China;3.College of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing 404100, China)
Clc Number:TV135
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Abstract:

The three-dimensional mathematical model was used in the numerical simulation of the flow pattern in the fishway with trapezoidal cross-section. The results showed that the trapezoidal fishway has obvious three-dimensional characteristics of the water flow. It will weaken the three-dimensional characteristics of the flow within trapezoidal fishway when the water area ratio in the vertical slot increases. When the water area ratio is less than 0.375, the three-dimensional characteristics is more obvious. The aspect ratio of the pool room has little effect on the three-dimensional flow characteristics in the fishway.

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李恒,王晓刚,郑飞东.梯形断面鱼道内水流的三维特性分析[J].河海大学学报(自然科学版),2023,51(1):61-65, 76.(LI Heng, WANG Xiaogang, ZHENG Feidong. Three-dimensional characteristics analysis of flow in trapezoidal fishway[J]. Journal of Hohai University (Natural Sciences),2023,51(1):61-65, 76.(in Chinese))

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Received:December 03,2021
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Online: March 15,2023
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