| DOI | Resolve DOI: https://doi.org/10.1201/9781003323037-87 |
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| Author | Search for: Provan, M.1ORCID identifier: https://orcid.org/0000-0002-0882-5272; Search for: Knox, P.1ORCID identifier: https://orcid.org/0000-0002-4238-9347; Search for: Rayner, A.1; Search for: Cornett, A.1ORCID identifier: https://orcid.org/0000-0002-9172-093X |
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| Affiliation | - National Research Council Canada. Ocean, Coastal and River Engineering
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| Format | Text, Book Chapter |
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| Subject | climate change; movable dams; scour; rivers; changing climate; dissipation device; dissipation methods; down-stream; energy; extreme flows; flow condition; low-head dams; scale modeling study; simple++ |
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| Abstract | Hydraulic structures across Canada will need to be adapted to deal with Canada’s changing climate. A changing climate may produce more frequent and more extreme flow conditions which can lead to issues with downstream scour. Many energy dissipation methods and devices have been previously studied and implemented; however, these methods are not always suitable for adapting existing infrastructure as they require expensive flow bypassing and dewatering in order to install. There is a need to develop new simple, low-cost energy dissipation methods that can be used to easily adapt existing hydraulic structures to cope with a changing climate. An existing 1:24 physical model of a low head dam was used to test two simple energy dissipation methods; an array of boulders and a set of concrete steps, along with a more elaborate concrete lined pool. The methods were exposed to three inflow discharges at two tailwater depths and their performance were quantified by measuring downstream velocities and scour. Several recommendations for implementing the methods were concluded from the model tests. |
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| Publication date | 2024-08-06 |
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| Publisher | CRC Press |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | cba83232-b8cd-45ae-be02-af8cac0dc51d |
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| Record created | 2025-06-09 |
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| Record modified | 2025-06-09 |
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