Experimental Tests of Lateral Bedload Transport Induced by a Yawed Submerged Vane Array in Open-Channel Flows
Journal Article
·
· Journal of Hydraulic Engineering
- Colorado State Univ., Fort Collins, CO (United States)
- Utrecht University (Netherlands)
- Univ. of Minnesota, Minneapolis, MN (United States)
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
This work proposes the use of an array of yawed porous vanes to control the lateral bedload transport by locally steering bedform migration and maximize the amount of sediments redirected toward a potential sediment extraction system or bypass channel. A laboratory experiment was conducted in a quasifield-scale channel with an array of permeable vanes installed on one side, in live-bed conditions under bedload dominant regime, i.e., negligible suspended load. A baseline experiment without vanes was also performed for comparison. The evolution of migrating bedforms of different scales was tracked in space and time using a high-resolution, state-of-the-art laser scanning device. The bedload transport rate in the streamwise direction was first calculated using bedforms’ geometry and migration velocity, and then spatially distributed over the entire monitored area using a new Eulerian-averaged grid-mapping method. This allowed us to introduce a new methodology to estimate the lateral bedload transport using control volume theory and applying mass conservation. Quantitative assessments of lateral bedload transport along the channel yield consistent results, suggesting that the vanes effectively move sediments laterally as intended. Under the investigated setup, the maximum lateral sediment transport rate ranges from 9% to 18% of the whole domain-averaged streamwise transport rate. The developed methodology also allowed to identify the location where sediment capture could be maximized for the given vane spatial distribution.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); University of Minnesota, Minneapolis, MN (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Water Power Technologies Office
- Grant/Contract Number:
- AC05-00OR22725; EE0008947
- OSTI ID:
- 2434366
- Alternate ID(s):
- OSTI ID: 2507221
- Journal Information:
- Journal of Hydraulic Engineering, Journal Name: Journal of Hydraulic Engineering Journal Issue: 6 Vol. 150; ISSN 0733-9429
- Publisher:
- American Society of Civil Engineers (ASCE)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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