Flume Experiments for Flow around Debris Accumulation at a BridgeFlume Experiments for Flow around Debris Accumulation at a Bridge
- Other Titles
- Flume Experiments for Flow around Debris Accumulation at a Bridge
- Authors
- Jeon, Jeongsook; Kim, Youngkyu; Kim, Dongkyun; Kang, SeokKoo
- Issue Date
- 15-Jan-2024
- Publisher
- KOREAN SOCIETY OF CIVIL ENGINEERS-KSCE
- Keywords
- Debris accumulation; Open channel flow; Turbulence; Bridge scour; Flow measurement
- Citation
- KSCE JOURNAL OF CIVIL ENGINEERING, v.28, no.3, pp 1049 - 1061
- Pages
- 13
- Journal Title
- KSCE JOURNAL OF CIVIL ENGINEERING
- Volume
- 28
- Number
- 3
- Start Page
- 1049
- End Page
- 1061
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/32594
- DOI
- 10.1007/s12205-024-1442-4
- ISSN
- 1226-7988
1976-3808
- Abstract
- We conducted flume experiments to study the flow behavior around a debris accumulation at a two-pier bridge. An Acoustic Doppler Velocimetry was utilized to measure velocity in cases with and without debris. We examined the impact of this accumulation on the velocity field and bed shear stress to better understand the flow and sediment transport mechanisms near the debris buildup at the bridge. Debris clusters were found to cause strong downward flows behind the bridge piers and to create turbulent shear layers emanating from the debris base. These flow patterns caused an increase in bed shear stress behind the piers by up to 40%. Downstream of the bridge, the debris-induced bed shear stress increase persisted for a distance equivalent to four times the spacing between the piers.
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Collections - College of Engineering > Civil and Environmental Engineering > Journal Articles
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