Case Study of Transient Dynamics in a Bypass Reach
The operating conditions of Nordic hydropower plants are expected to change in the coming years to work more in conjunction with intermittent power production, causing more frequent hydropeaking events. Hydropeaking has been shown to be detrimental to wildlife in the river reaches downstream of hydr...
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Luleå tekniska universitet, Strömningslära och experimentell mekanik
2020
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-79175 https://doi.org/10.3390/w12061585 |
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ftluleatu:oai:DiVA.org:ltu-79175 2023-05-15T17:44:40+02:00 Case Study of Transient Dynamics in a Bypass Reach Burman, Anton J. Andersson, Anders G. Hellström, J. Gunnar I. Angele, Kristian 2020 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-79175 https://doi.org/10.3390/w12061585 eng eng Luleå tekniska universitet, Strömningslära och experimentell mekanik Vattenfall Research and Development, Älvkarlebylaboratoriet, 814 70 Älvkarleby, Sweden Water, 2073-4441, 2020, 12:6, orcid:0000-0003-3408-9237 orcid:0000-0001-9789-6293 orcid:0000-0002-8360-9051 http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-79175 doi:10.3390/w12061585 ISI:000550865600001 Scopus 2-s2.0-85087451637 info:eu-repo/semantics/openAccess inherent damping hydropeaking river dynamics hydraulic modeling delft3d Fluid Mechanics and Acoustics Strömningsmekanik och akustik Article in journal info:eu-repo/semantics/article text 2020 ftluleatu https://doi.org/10.3390/w12061585 2022-12-01T17:10:33Z The operating conditions of Nordic hydropower plants are expected to change in the coming years to work more in conjunction with intermittent power production, causing more frequent hydropeaking events. Hydropeaking has been shown to be detrimental to wildlife in the river reaches downstream of hydropower plants. In this work, we investigate how different possible future hydropeaking scenarios affect the water surface elevation dynamics in a bypass reach in the Ume River in northern Sweden. The river dynamics has been modeled using the open-source solver Delft3D. The numerical model was validated and calibrated with water-surface-elevation measurements. A hysteresis effect on the water surface elevation, varying with the downstream distance from the spillways, was seen in both the simulated and the measured data. Increasing the hydropeaking rate is shown to dampen the variation in water surface elevation and wetted area in the most downstream parts of the reach, which could have positive effects on habitat and bed stability compared to slower rates in that region. Validerad;2020;Nivå 2;2020-07-15 (alebob) HydroFlex Article in Journal/Newspaper Northern Sweden Luleå University of Technology Publications (DiVA) Water 12 6 1585 |
institution |
Open Polar |
collection |
Luleå University of Technology Publications (DiVA) |
op_collection_id |
ftluleatu |
language |
English |
topic |
inherent damping hydropeaking river dynamics hydraulic modeling delft3d Fluid Mechanics and Acoustics Strömningsmekanik och akustik |
spellingShingle |
inherent damping hydropeaking river dynamics hydraulic modeling delft3d Fluid Mechanics and Acoustics Strömningsmekanik och akustik Burman, Anton J. Andersson, Anders G. Hellström, J. Gunnar I. Angele, Kristian Case Study of Transient Dynamics in a Bypass Reach |
topic_facet |
inherent damping hydropeaking river dynamics hydraulic modeling delft3d Fluid Mechanics and Acoustics Strömningsmekanik och akustik |
description |
The operating conditions of Nordic hydropower plants are expected to change in the coming years to work more in conjunction with intermittent power production, causing more frequent hydropeaking events. Hydropeaking has been shown to be detrimental to wildlife in the river reaches downstream of hydropower plants. In this work, we investigate how different possible future hydropeaking scenarios affect the water surface elevation dynamics in a bypass reach in the Ume River in northern Sweden. The river dynamics has been modeled using the open-source solver Delft3D. The numerical model was validated and calibrated with water-surface-elevation measurements. A hysteresis effect on the water surface elevation, varying with the downstream distance from the spillways, was seen in both the simulated and the measured data. Increasing the hydropeaking rate is shown to dampen the variation in water surface elevation and wetted area in the most downstream parts of the reach, which could have positive effects on habitat and bed stability compared to slower rates in that region. Validerad;2020;Nivå 2;2020-07-15 (alebob) HydroFlex |
format |
Article in Journal/Newspaper |
author |
Burman, Anton J. Andersson, Anders G. Hellström, J. Gunnar I. Angele, Kristian |
author_facet |
Burman, Anton J. Andersson, Anders G. Hellström, J. Gunnar I. Angele, Kristian |
author_sort |
Burman, Anton J. |
title |
Case Study of Transient Dynamics in a Bypass Reach |
title_short |
Case Study of Transient Dynamics in a Bypass Reach |
title_full |
Case Study of Transient Dynamics in a Bypass Reach |
title_fullStr |
Case Study of Transient Dynamics in a Bypass Reach |
title_full_unstemmed |
Case Study of Transient Dynamics in a Bypass Reach |
title_sort |
case study of transient dynamics in a bypass reach |
publisher |
Luleå tekniska universitet, Strömningslära och experimentell mekanik |
publishDate |
2020 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-79175 https://doi.org/10.3390/w12061585 |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_relation |
Water, 2073-4441, 2020, 12:6, orcid:0000-0003-3408-9237 orcid:0000-0001-9789-6293 orcid:0000-0002-8360-9051 http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-79175 doi:10.3390/w12061585 ISI:000550865600001 Scopus 2-s2.0-85087451637 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3390/w12061585 |
container_title |
Water |
container_volume |
12 |
container_issue |
6 |
container_start_page |
1585 |
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1766146925009043456 |