Hydraulic classification of hydropeaking stages in a river reach
Hydropower is an important tool in the struggle for low-emission power production. In the Nordic countries, hydropower operating conditions are expected to change and work more in conjunction with intermittent power production. This in turn might increase the amount of hydropeaking events in the rea...
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Luleå tekniska universitet, Strömningslära och experimentell mekanik
2023
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-94340 https://doi.org/10.1002/rra.4098 |
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ftluleatu:oai:DiVA.org:ltu-94340 2023-05-15T17:44:48+02:00 Hydraulic classification of hydropeaking stages in a river reach Burman, Anton J. Andersson, Anders G. Hellström, J. Gunnar I. 2023 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-94340 https://doi.org/10.1002/rra.4098 eng eng Luleå tekniska universitet, Strömningslära och experimentell mekanik Rivers Research and Applications : an international journal devoted to river research and management, 1535-1459, 2023 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-94340 doi:10.1002/rra.4098 info:eu-repo/semantics/openAccess delft3d Fourier analysis hydraulic stage hydropeaking hydropeaking frequency Fluid Mechanics and Acoustics Strömningsmekanik och akustik Article in journal info:eu-repo/semantics/article text 2023 ftluleatu https://doi.org/10.1002/rra.4098 2023-01-19T17:10:37Z Hydropower is an important tool in the struggle for low-emission power production. In the Nordic countries, hydropower operating conditions are expected to change and work more in conjunction with intermittent power production. This in turn might increase the amount of hydropeaking events in the reaches downstream of hydropower plants. The current work investigates the influence of highly flexible, high-frequency hydropeaking on the hydrodynamics in the downstream reach. By quantifying four different dynamic stages in the study reach, the influence of the hydropeaking frequencies was investigated in the bypass reach of the Stornorrfors hydropower plant in the river Umeälven in northern Sweden. The hydrodynamics in the study reach were numerically modelled using the open source solver Delft3D. Eight different highly flexible future hydropeaking scenarios, varying from 12 to 60 flow changes per day, were considered. A method for identifying four hydropeaking stages—dewatering, dynamic, alternating and uniform —was introduced. The hydropeaking frequency directly decided the stage in most of the study reach. Furthermore, a Fourier analysis showed a significant difference between the stages and their corresponding power spectra. The classification of stages put forward in this work provides a novel, simple method to investigate the hydrodynamics due to hydropeaking in a river reach. This article has previously appeared as a manuscript in a thesis. Article in Journal/Newspaper Northern Sweden Luleå University of Technology Publications (DiVA) Umeälven ENVELOPE(15.133,15.133,65.767,65.767) River Research and Applications |
institution |
Open Polar |
collection |
Luleå University of Technology Publications (DiVA) |
op_collection_id |
ftluleatu |
language |
English |
topic |
delft3d Fourier analysis hydraulic stage hydropeaking hydropeaking frequency Fluid Mechanics and Acoustics Strömningsmekanik och akustik |
spellingShingle |
delft3d Fourier analysis hydraulic stage hydropeaking hydropeaking frequency Fluid Mechanics and Acoustics Strömningsmekanik och akustik Burman, Anton J. Andersson, Anders G. Hellström, J. Gunnar I. Hydraulic classification of hydropeaking stages in a river reach |
topic_facet |
delft3d Fourier analysis hydraulic stage hydropeaking hydropeaking frequency Fluid Mechanics and Acoustics Strömningsmekanik och akustik |
description |
Hydropower is an important tool in the struggle for low-emission power production. In the Nordic countries, hydropower operating conditions are expected to change and work more in conjunction with intermittent power production. This in turn might increase the amount of hydropeaking events in the reaches downstream of hydropower plants. The current work investigates the influence of highly flexible, high-frequency hydropeaking on the hydrodynamics in the downstream reach. By quantifying four different dynamic stages in the study reach, the influence of the hydropeaking frequencies was investigated in the bypass reach of the Stornorrfors hydropower plant in the river Umeälven in northern Sweden. The hydrodynamics in the study reach were numerically modelled using the open source solver Delft3D. Eight different highly flexible future hydropeaking scenarios, varying from 12 to 60 flow changes per day, were considered. A method for identifying four hydropeaking stages—dewatering, dynamic, alternating and uniform —was introduced. The hydropeaking frequency directly decided the stage in most of the study reach. Furthermore, a Fourier analysis showed a significant difference between the stages and their corresponding power spectra. The classification of stages put forward in this work provides a novel, simple method to investigate the hydrodynamics due to hydropeaking in a river reach. This article has previously appeared as a manuscript in a thesis. |
format |
Article in Journal/Newspaper |
author |
Burman, Anton J. Andersson, Anders G. Hellström, J. Gunnar I. |
author_facet |
Burman, Anton J. Andersson, Anders G. Hellström, J. Gunnar I. |
author_sort |
Burman, Anton J. |
title |
Hydraulic classification of hydropeaking stages in a river reach |
title_short |
Hydraulic classification of hydropeaking stages in a river reach |
title_full |
Hydraulic classification of hydropeaking stages in a river reach |
title_fullStr |
Hydraulic classification of hydropeaking stages in a river reach |
title_full_unstemmed |
Hydraulic classification of hydropeaking stages in a river reach |
title_sort |
hydraulic classification of hydropeaking stages in a river reach |
publisher |
Luleå tekniska universitet, Strömningslära och experimentell mekanik |
publishDate |
2023 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-94340 https://doi.org/10.1002/rra.4098 |
long_lat |
ENVELOPE(15.133,15.133,65.767,65.767) |
geographic |
Umeälven |
geographic_facet |
Umeälven |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_relation |
Rivers Research and Applications : an international journal devoted to river research and management, 1535-1459, 2023 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-94340 doi:10.1002/rra.4098 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/rra.4098 |
container_title |
River Research and Applications |
_version_ |
1766147083863064576 |