전도식 가동보 내 어도 탑재를 위한 어도 설계 및 유동 특성에 관한 연구
Study on Fishway Design and Flow Characteristics to Apply the Fishway in the Turning Type Flood Gate
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초록
In this study, numerical analysis is conducted to investigate the flow characteristics of a turning type flood gate fishway with various design factors. The shapes of the fishway are circular and rectangular type. Baffles are installed to reduce the velocity in the fishway, and the gap and rotational arrangement of the baffles are set as design factors. To reduce the maximum velocity, a cavity-shaped break region is installed to examine the flow characteristics according to the presence of the break region. As a result, in the condition where the shape of the fishway is rectangular, the outlet average flow velocity is larger than that in the circular condition. The highest flow velocity occurs when the baffle is rotated in 90-degree arrangement. As the baffle gap increases, the average velocity increases. The cavity-shaped break region creates a recirculation zone in the fishway, and as a result, shows a decrease in the maximum velocity of up to 5.8%.
Abstract
In this study, numerical analysis is conducted to investigate the flow characteristics of a turning type flood gate fishway with various design factors. The shapes of the fishway are circular and rectangular type. Baffles are installed to reduce the velocity in the fishway, and the gap and rotational arrangement of the baffles are set as design factors. To reduce the maximum velocity, a cavity-shaped break region is installed to examine the flow characteristics according to the presence of the break region. As a result, in the condition where the shape of the fishway is rectangular, the outlet average flow velocity is larger than that in the circular condition. The highest flow velocity occurs when the baffle is rotated in 90-degree arrangement. As the baffle gap increases, the average velocity increases. The cavity-shaped break region creates a recirculation zone in the fishway, and as a result, shows a decrease in the maximum velocity of up to 5.8%.
참고문헌 (5)
- Ministry of Land, Infrastructure and Transport, "Criteria for river design", ~ (2018)
- 고선호, "아이스하버식 어도 내 수리특성에 관한 수치해석연구", 한국전산유체공학회지, 20(3), pp.15~19 (2015), 한국전산유체공학회[DOI]
- 조재안, "유량변화에 따른 아이스하버식 어도의 수리학적 이동효율 분석", 대한토목학회논문집(국문), 33(5), pp.1841~1850 (2013), 대한토목학회[DOI]
- C. H. Shin, "Numerical analysis of the hydraulic characteristics of pool-weir fishway", The Korean Society of Agricultural Engineers, pp.61~61 (2018)
- "ANSYS® Fluent, Release 2021 R1", ~ (2021)