Hydraulic Modelling of a Regulated River Reach on Different Scales to Evaluate its Inherent Environmental Conditions
Hydraulic modelling can be an important tool to assess ecological status of rivers and to evaluate where and how measures should be implemented to maximize their impact. This is becoming increasingly important in regulated rivers since hydropower’s ability to balance intermittent electricity sources...
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Luleå tekniska universitet, Strömningslära och experimentell mekanik
2022
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ftluleatu:oai:DiVA.org:ltu-92466 2023-05-15T17:44:51+02:00 Hydraulic Modelling of a Regulated River Reach on Different Scales to Evaluate its Inherent Environmental Conditions Andersson, Anders G. Lycksam, Henrik 2022 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-92466 https://doi.org/10.3850/IAHR-39WC2521716X20221807 eng eng Luleå tekniska universitet, Strömningslära och experimentell mekanik International Association for Hydro-Environment Engineering and Research (IAHR) Proceedings of the IAHR World Congress, 2521-7119 Proceedings of the 39th IAHR World Congress : From Snow To Sea, p. 4189-4195 orcid:0000-0001-9789-6293 http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-92466 doi:10.3850/IAHR-39WC2521716X20221807 info:eu-repo/semantics/openAccess Ecohydraulics Numerical Modelling Field Measurements River Hydraulics Fluid Mechanics and Acoustics Strömningsmekanik och akustik Conference paper info:eu-repo/semantics/conferenceObject text 2022 ftluleatu https://doi.org/10.3850/IAHR-39WC2521716X20221807 2022-10-25T20:58:51Z Hydraulic modelling can be an important tool to assess ecological status of rivers and to evaluate where and how measures should be implemented to maximize their impact. This is becoming increasingly important in regulated rivers since hydropower’s ability to balance intermittent electricity sources such as wind- and solar power is resulting in more frequent starts and stops of the power plants, which in turn is affecting the local environmental conditions. The resulting flow fields from the modelling can, for instance, be used to classify biologically important areas in rivers. Several relevant flow parameters can be predicted and applied, e.g., depth and water velocities can be used to estimate habitat for specific fish species or the variation in water levels can be used to evaluate the risk of stranding for fish in different life stages. This work specifically involves numerical modelling of a heavily regulated reach in the Lule River in northern Sweden. Models are created in 1D, 2D and 3D to show strengths and weaknesses in the different modelling techniques. To ensure that the models capture reality, measurements of water levels and temperatures in the reach are performed using pressure/temperature loggers for validation purposes. River velocities are also measured with an Acoustic Doppler Current Profiler which are mainly used to validate the 3D model. The results derived using the different modelling methods are all shown to be useful depending on relevant application. Conference Object Northern Sweden Luleå University of Technology Publications (DiVA) |
institution |
Open Polar |
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Luleå University of Technology Publications (DiVA) |
op_collection_id |
ftluleatu |
language |
English |
topic |
Ecohydraulics Numerical Modelling Field Measurements River Hydraulics Fluid Mechanics and Acoustics Strömningsmekanik och akustik |
spellingShingle |
Ecohydraulics Numerical Modelling Field Measurements River Hydraulics Fluid Mechanics and Acoustics Strömningsmekanik och akustik Andersson, Anders G. Lycksam, Henrik Hydraulic Modelling of a Regulated River Reach on Different Scales to Evaluate its Inherent Environmental Conditions |
topic_facet |
Ecohydraulics Numerical Modelling Field Measurements River Hydraulics Fluid Mechanics and Acoustics Strömningsmekanik och akustik |
description |
Hydraulic modelling can be an important tool to assess ecological status of rivers and to evaluate where and how measures should be implemented to maximize their impact. This is becoming increasingly important in regulated rivers since hydropower’s ability to balance intermittent electricity sources such as wind- and solar power is resulting in more frequent starts and stops of the power plants, which in turn is affecting the local environmental conditions. The resulting flow fields from the modelling can, for instance, be used to classify biologically important areas in rivers. Several relevant flow parameters can be predicted and applied, e.g., depth and water velocities can be used to estimate habitat for specific fish species or the variation in water levels can be used to evaluate the risk of stranding for fish in different life stages. This work specifically involves numerical modelling of a heavily regulated reach in the Lule River in northern Sweden. Models are created in 1D, 2D and 3D to show strengths and weaknesses in the different modelling techniques. To ensure that the models capture reality, measurements of water levels and temperatures in the reach are performed using pressure/temperature loggers for validation purposes. River velocities are also measured with an Acoustic Doppler Current Profiler which are mainly used to validate the 3D model. The results derived using the different modelling methods are all shown to be useful depending on relevant application. |
format |
Conference Object |
author |
Andersson, Anders G. Lycksam, Henrik |
author_facet |
Andersson, Anders G. Lycksam, Henrik |
author_sort |
Andersson, Anders G. |
title |
Hydraulic Modelling of a Regulated River Reach on Different Scales to Evaluate its Inherent Environmental Conditions |
title_short |
Hydraulic Modelling of a Regulated River Reach on Different Scales to Evaluate its Inherent Environmental Conditions |
title_full |
Hydraulic Modelling of a Regulated River Reach on Different Scales to Evaluate its Inherent Environmental Conditions |
title_fullStr |
Hydraulic Modelling of a Regulated River Reach on Different Scales to Evaluate its Inherent Environmental Conditions |
title_full_unstemmed |
Hydraulic Modelling of a Regulated River Reach on Different Scales to Evaluate its Inherent Environmental Conditions |
title_sort |
hydraulic modelling of a regulated river reach on different scales to evaluate its inherent environmental conditions |
publisher |
Luleå tekniska universitet, Strömningslära och experimentell mekanik |
publishDate |
2022 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-92466 https://doi.org/10.3850/IAHR-39WC2521716X20221807 |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_relation |
Proceedings of the IAHR World Congress, 2521-7119 Proceedings of the 39th IAHR World Congress : From Snow To Sea, p. 4189-4195 orcid:0000-0001-9789-6293 http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-92466 doi:10.3850/IAHR-39WC2521716X20221807 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3850/IAHR-39WC2521716X20221807 |
_version_ |
1766147144626995200 |