Evaluating Attraction and Passage Efficiencies of Pool-Weir Type Fishways Based on Hydraulic Analysis
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Department of Civil and Environmental Engineering, Hankyong National University, 327 Chungang-ro, Anseong-si 17579, Gyeonggi-do, Korea
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Department of Environmental Engineering, Inje University, 197 Inje-ro, Gimhae 50834, Gyengnam-do, Korea
3
Water Quality Assessment Research Division, National Institute of Environmental Research, Incheon 22689, Gyeonggi-do, Korea
4
Department of Civil and Environmental Engineering, Myongji University, 116 Myongji-ro, Yongin-si 17058, Gyeonggi-do, Korea
*
Author to whom correspondence should be addressed.
Academic Editors: Dibyendu Sarkar, Rupali Datta, Prafulla Kumar Sahoo and Mohammad Mahmudur Rahman
Appl. Sci. 2022, 12(4), 1880; https://doi.org/10.3390/app12041880
Received: 14 January 2022
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Revised: 7 February 2022
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Accepted: 8 February 2022
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Published: 11 February 2022
(This article belongs to the Topic Sustainable Environmental Technologies)
In this study, a hydraulic analysis technique is presented for evaluating the efficiency of a pool-weir type fishway. The River-2D model with the fish physical habitat module was used for the analysis of the attraction efficiency, and the weighted usable area proposed as an index of the efficiency. For the analysis of passage efficiency, the three-dimensional model, FLOW-3D, was used as an evaluating tool to describe the fluid behavior on a hydraulic structure with a free surface. The ice-harbor type fishway at Dalseong weir in the Nakdong River of Korea was selected as a test-site, and the efficiency was estimated using the hydraulic analysis. The results of River-2D analysis showed that the location of the fishway near the right bank now was not appropriate for attracting the target fish to the fishway due to the deep water depth. The 3D analysis results presented that the flow velocity field inside the fishway showed a similar plunging flow in each pool, but various flow patterns appeared locally.
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Keywords:
hydraulic analysis; fishway; attraction efficiency; passage efficiency; multifunctional weir
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MDPI and ACS Style
Baek, K.-O.; Lee, J.-M.; Han, E.-J.; Kim, Y.-D. Evaluating Attraction and Passage Efficiencies of Pool-Weir Type Fishways Based on Hydraulic Analysis. Appl. Sci. 2022, 12, 1880. https://doi.org/10.3390/app12041880
AMA Style
Baek K-O, Lee J-M, Han E-J, Kim Y-D. Evaluating Attraction and Passage Efficiencies of Pool-Weir Type Fishways Based on Hydraulic Analysis. Applied Sciences. 2022; 12(4):1880. https://doi.org/10.3390/app12041880
Chicago/Turabian StyleBaek, Kyong-Oh, Jeong-Min Lee, Eun-Jin Han, and Young-Do Kim. 2022. "Evaluating Attraction and Passage Efficiencies of Pool-Weir Type Fishways Based on Hydraulic Analysis" Applied Sciences 12, no. 4: 1880. https://doi.org/10.3390/app12041880
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