Optimized Predictive Two-Dimensional Hydrodynamic Model of the Gironde Estuary in France.
International audience A two-dimensional hydrodynamic model of the macrotidal Gironde estuary (France) is developed and shown to predict the tide propagation with an accuracy of < 10 cm on water level. The 170-km-long computational domain represents, in detail, the central part of the estuary, ch...
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ftgroupeedf:oai:HAL:hal-00766553v1 2024-09-15T18:24:44+00:00 Optimized Predictive Two-Dimensional Hydrodynamic Model of the Gironde Estuary in France. Huybrechts, Nicolas Villaret, Catherine Lyard, Florent Laboratoire d'Hydraulique Saint-Venant / Saint-Venant Laboratory for Hydraulics (LHSV) École des Ponts ParisTech (ENPC)-PRES Université Paris-Est-EDF (EDF)-Avant création Cerema Laboratoire National d’Hydraulique et Environnement (EDF R&D LNHE) EDF R&D (EDF R&D) EDF (EDF)-EDF (EDF) Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) 2012 https://hal.science/hal-00766553 https://doi.org/10.1061/(ASCE)WW.1943-5460.0000129 en eng HAL CCSD American Society of Civil Engineers info:eu-repo/semantics/altIdentifier/doi/10.1061/(ASCE)WW.1943-5460.0000129 hal-00766553 https://hal.science/hal-00766553 doi:10.1061/(ASCE)WW.1943-5460.0000129 ISSN: 0733-950X Journal of Waterway, Port, Coastal, and Ocean Engineering https://hal.science/hal-00766553 Journal of Waterway, Port, Coastal, and Ocean Engineering, 2012, 138 (4), pp.312-322. ⟨10.1061/(ASCE)WW.1943-5460.0000129⟩ Hydrodynamics Friction Predictions France Two-dimensional models Estuaries Hydrodynamic Bed friction prediction 2D tidal modelling Harmonic constants [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2012 ftgroupeedf https://doi.org/10.1061/(ASCE)WW.1943-5460.0000129 2024-06-26T23:30:14Z International audience A two-dimensional hydrodynamic model of the macrotidal Gironde estuary (France) is developed and shown to predict the tide propagation with an accuracy of < 10 cm on water level. The 170-km-long computational domain represents, in detail, the central part of the estuary, characterized by a complex multichannel geometry. This model provides an efficient and accurate operational tool by using an optimized finite-element numerical scheme. Particular attention is paid to the offshore boundary conditions and to the calibration procedure. On the offshore boundary, the tidal signal is decomposed into harmonics whose main amplitudes and phases are obtained from a regional tidal model covering the North East Atlantic. Sensitivity studies are conducted to determine the influence of the harmonics number and harmonic constants on tidal prediction at the mouth. Differences up to 20 ∼ 30 cm in water level at the estuary mouth are observed between the scenarios for the tidal forcing. The calibration of the friction coefficient is thus linked to the tidal forcing scenario. A calibration procedure for the friction coefficient is also presented that can be applied to estuarine conditions. The van Rijn method is applied to predict a first set of values for the friction coefficients as a function of grain size and flow parameters. These predicted mean (time-averaged) coefficients are then adjusted with a maximum of 15% to reproduce in a best way water level and velocity measurements. Article in Journal/Newspaper North East Atlantic Portail HAL-EDF Journal of Waterway, Port, Coastal, and Ocean Engineering 138 4 312 322 |
institution |
Open Polar |
collection |
Portail HAL-EDF |
op_collection_id |
ftgroupeedf |
language |
English |
topic |
Hydrodynamics Friction Predictions France Two-dimensional models Estuaries Hydrodynamic Bed friction prediction 2D tidal modelling Harmonic constants [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
Hydrodynamics Friction Predictions France Two-dimensional models Estuaries Hydrodynamic Bed friction prediction 2D tidal modelling Harmonic constants [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Huybrechts, Nicolas Villaret, Catherine Lyard, Florent Optimized Predictive Two-Dimensional Hydrodynamic Model of the Gironde Estuary in France. |
topic_facet |
Hydrodynamics Friction Predictions France Two-dimensional models Estuaries Hydrodynamic Bed friction prediction 2D tidal modelling Harmonic constants [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience A two-dimensional hydrodynamic model of the macrotidal Gironde estuary (France) is developed and shown to predict the tide propagation with an accuracy of < 10 cm on water level. The 170-km-long computational domain represents, in detail, the central part of the estuary, characterized by a complex multichannel geometry. This model provides an efficient and accurate operational tool by using an optimized finite-element numerical scheme. Particular attention is paid to the offshore boundary conditions and to the calibration procedure. On the offshore boundary, the tidal signal is decomposed into harmonics whose main amplitudes and phases are obtained from a regional tidal model covering the North East Atlantic. Sensitivity studies are conducted to determine the influence of the harmonics number and harmonic constants on tidal prediction at the mouth. Differences up to 20 ∼ 30 cm in water level at the estuary mouth are observed between the scenarios for the tidal forcing. The calibration of the friction coefficient is thus linked to the tidal forcing scenario. A calibration procedure for the friction coefficient is also presented that can be applied to estuarine conditions. The van Rijn method is applied to predict a first set of values for the friction coefficients as a function of grain size and flow parameters. These predicted mean (time-averaged) coefficients are then adjusted with a maximum of 15% to reproduce in a best way water level and velocity measurements. |
author2 |
Laboratoire d'Hydraulique Saint-Venant / Saint-Venant Laboratory for Hydraulics (LHSV) École des Ponts ParisTech (ENPC)-PRES Université Paris-Est-EDF (EDF)-Avant création Cerema Laboratoire National d’Hydraulique et Environnement (EDF R&D LNHE) EDF R&D (EDF R&D) EDF (EDF)-EDF (EDF) Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Huybrechts, Nicolas Villaret, Catherine Lyard, Florent |
author_facet |
Huybrechts, Nicolas Villaret, Catherine Lyard, Florent |
author_sort |
Huybrechts, Nicolas |
title |
Optimized Predictive Two-Dimensional Hydrodynamic Model of the Gironde Estuary in France. |
title_short |
Optimized Predictive Two-Dimensional Hydrodynamic Model of the Gironde Estuary in France. |
title_full |
Optimized Predictive Two-Dimensional Hydrodynamic Model of the Gironde Estuary in France. |
title_fullStr |
Optimized Predictive Two-Dimensional Hydrodynamic Model of the Gironde Estuary in France. |
title_full_unstemmed |
Optimized Predictive Two-Dimensional Hydrodynamic Model of the Gironde Estuary in France. |
title_sort |
optimized predictive two-dimensional hydrodynamic model of the gironde estuary in france. |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/hal-00766553 https://doi.org/10.1061/(ASCE)WW.1943-5460.0000129 |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_source |
ISSN: 0733-950X Journal of Waterway, Port, Coastal, and Ocean Engineering https://hal.science/hal-00766553 Journal of Waterway, Port, Coastal, and Ocean Engineering, 2012, 138 (4), pp.312-322. ⟨10.1061/(ASCE)WW.1943-5460.0000129⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1061/(ASCE)WW.1943-5460.0000129 hal-00766553 https://hal.science/hal-00766553 doi:10.1061/(ASCE)WW.1943-5460.0000129 |
op_doi |
https://doi.org/10.1061/(ASCE)WW.1943-5460.0000129 |
container_title |
Journal of Waterway, Port, Coastal, and Ocean Engineering |
container_volume |
138 |
container_issue |
4 |
container_start_page |
312 |
op_container_end_page |
322 |
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1810465159463829504 |