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Ajouter le résultat dans votre panierComposite modelling of interactions between beaches and structures / Herman Gerritsen in Journal of hydraulic research, Vol. 49 Supplément 1 (2011)
in Journal of hydraulic research > Vol. 49 Supplément 1 (2011) . - pp. 2-14
Titre : Composite modelling of interactions between beaches and structures Type de document : texte imprimé Auteurs : Herman Gerritsen, Auteur ; James Sutherland, Auteur ; Rolf Deigaard, Auteur Année de publication : 2012 Article en page(s) : pp. 2-14 Note générale : Hydraulique Langues : Anglais (eng) Mots-clés : Beach Composite modelling Hydraulic scale modelling Numerical modelling Structure Index. décimale : 627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques Résumé : An overview of Composite Modelling (CM) is presented, as elaborated in the EU/HYDRALAB joint research project Composite Modelling of the Interactions Between Beaches and Structures. An introduction and a review of the main literature on CM in the hydraulic community are given. In Section 3, the case studies of CM of the seven partners participating in this project are discussed. The focus is on the methodologies used and their impact on the modelling approach, rather than the results of the experiments per se. A further section presents reflections on key elements in CM, as they emerged in the various case studies. The related subject of Good Modelling Practice is summarized in Section 5. Then guidelines are given on how to decide if CM may be beneficial, and how to set up a CM experiment. It is concluded that CM in the hydraulic community is still in its infancy but involves challenging research with significant potential.
DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.tandfonline.com/doi/abs/10.1080/00221686.2011.589134 [article] Composite modelling of interactions between beaches and structures [texte imprimé] / Herman Gerritsen, Auteur ; James Sutherland, Auteur ; Rolf Deigaard, Auteur . - 2012 . - pp. 2-14.
Hydraulique
Langues : Anglais (eng)
in Journal of hydraulic research > Vol. 49 Supplément 1 (2011) . - pp. 2-14
Mots-clés : Beach Composite modelling Hydraulic scale modelling Numerical modelling Structure Index. décimale : 627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques Résumé : An overview of Composite Modelling (CM) is presented, as elaborated in the EU/HYDRALAB joint research project Composite Modelling of the Interactions Between Beaches and Structures. An introduction and a review of the main literature on CM in the hydraulic community are given. In Section 3, the case studies of CM of the seven partners participating in this project are discussed. The focus is on the methodologies used and their impact on the modelling approach, rather than the results of the experiments per se. A further section presents reflections on key elements in CM, as they emerged in the various case studies. The related subject of Good Modelling Practice is summarized in Section 5. Then guidelines are given on how to decide if CM may be beneficial, and how to set up a CM experiment. It is concluded that CM in the hydraulic community is still in its infancy but involves challenging research with significant potential.
DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.tandfonline.com/doi/abs/10.1080/00221686.2011.589134
in Journal of hydraulic research > Vol. 49 Supplément 1 (2011) . - pp. 15-19
Titre : Composite modelling for large-scale experiments on wave–dune interaction Type de document : texte imprimé Auteurs : Giuseppe Roberto Tomasicchio, Auteur ; Felice D'Alessandro, Auteur ; Giuseppe Barbaro, Auteur Année de publication : 2012 Article en page(s) : pp. 15-19 Note générale : Hydraulique Langues : Anglais (eng) Mots-clés : Breaching Composite model Dune erosion Large-scale experiment Overwash Index. décimale : 627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques Résumé : The research describes the design aspects related to the large-scale physical model experiments conducted within the EU-Hydralab III Integrated Infrastructure Initiative, at the Canal d'Investigaciò i Esperimentaciò Mar‘ıtima, Laboratori d'Enginyeria Mar‘ıtima at Universitat Politècnica de Catalunya, Barcelona. The aim of the experimental investigation is to enlarge the knowledge on dune erosion, overwash and breaching processes during storm surges. An innovative ‘composite’ numerical model has been adopted to reach a model test setup valid to observe dune erosion, overwash and breaching. The use of the proposed approach provides a better insight into the physical problems thereby, reducing the uncertainties in selecting the optimum wave characteristics to be reproduced in the flume for a given beach–dune geometry.
DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.tandfonline.com/doi/abs/10.1080/00221686.2011.604576 [article] Composite modelling for large-scale experiments on wave–dune interaction [texte imprimé] / Giuseppe Roberto Tomasicchio, Auteur ; Felice D'Alessandro, Auteur ; Giuseppe Barbaro, Auteur . - 2012 . - pp. 15-19.
Hydraulique
Langues : Anglais (eng)
in Journal of hydraulic research > Vol. 49 Supplément 1 (2011) . - pp. 15-19
Mots-clés : Breaching Composite model Dune erosion Large-scale experiment Overwash Index. décimale : 627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques Résumé : The research describes the design aspects related to the large-scale physical model experiments conducted within the EU-Hydralab III Integrated Infrastructure Initiative, at the Canal d'Investigaciò i Esperimentaciò Mar‘ıtima, Laboratori d'Enginyeria Mar‘ıtima at Universitat Politècnica de Catalunya, Barcelona. The aim of the experimental investigation is to enlarge the knowledge on dune erosion, overwash and breaching processes during storm surges. An innovative ‘composite’ numerical model has been adopted to reach a model test setup valid to observe dune erosion, overwash and breaching. The use of the proposed approach provides a better insight into the physical problems thereby, reducing the uncertainties in selecting the optimum wave characteristics to be reproduced in the flume for a given beach–dune geometry.
DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.tandfonline.com/doi/abs/10.1080/00221686.2011.604576
in Journal of hydraulic research > Vol. 49 Supplément 1 (2011) . - pp. 20-30
Titre : Large-scale experiments on dune erosion processes Type de document : texte imprimé Auteurs : Giuseppe Roberto Tomasicchio, Auteur ; Agustin Sanchez-Arcilla, Auteur ; Felice D'Alessandro, Auteur Année de publication : 2012 Article en page(s) : pp. 20-30 Note générale : Hydraulique Langues : Anglais (eng) Mots-clés : Breaching Dune erosion Large-scale experiment Numerical model Overwash Index. décimale : 627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques Résumé : This research provides an overview of the large-scale physical model experiments conducted at the Canal d'Investigaciò i Esperimentaciò Mar‘ıtima, Laboratori d'Enginyeria Mar‘ıtima, Universitat Politècnica de Catalunya, Barcelona, within the EU-Hydralab III Integrated Infrastructure Initiative. The model tests have been carried out in a flume with a sandy dune exposed to a combination of water levels and wave conditions. Different regimes of wave attacks on the sandy beach/dune system were investigated. In particular, the study provides a unique set of large-scale physical data concerning the wave-induced dune overwash. Measurements of velocities, sediment concentrations and beach–dune profile evolutions were considered. The profile measurements have been used to calibrate and validate a numerical model predicting the beach–dune profile modifications over the near-shore region. The numerical model compares well with the experimental data.
DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.tandfonline.com/doi/abs/10.1080/00221686.2011.604574 [article] Large-scale experiments on dune erosion processes [texte imprimé] / Giuseppe Roberto Tomasicchio, Auteur ; Agustin Sanchez-Arcilla, Auteur ; Felice D'Alessandro, Auteur . - 2012 . - pp. 20-30.
Hydraulique
Langues : Anglais (eng)
in Journal of hydraulic research > Vol. 49 Supplément 1 (2011) . - pp. 20-30
Mots-clés : Breaching Dune erosion Large-scale experiment Numerical model Overwash Index. décimale : 627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques Résumé : This research provides an overview of the large-scale physical model experiments conducted at the Canal d'Investigaciò i Esperimentaciò Mar‘ıtima, Laboratori d'Enginyeria Mar‘ıtima, Universitat Politècnica de Catalunya, Barcelona, within the EU-Hydralab III Integrated Infrastructure Initiative. The model tests have been carried out in a flume with a sandy dune exposed to a combination of water levels and wave conditions. Different regimes of wave attacks on the sandy beach/dune system were investigated. In particular, the study provides a unique set of large-scale physical data concerning the wave-induced dune overwash. Measurements of velocities, sediment concentrations and beach–dune profile evolutions were considered. The profile measurements have been used to calibrate and validate a numerical model predicting the beach–dune profile modifications over the near-shore region. The numerical model compares well with the experimental data.
DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.tandfonline.com/doi/abs/10.1080/00221686.2011.604574
in Journal of hydraulic research > Vol. 49 Supplément 1 (2011) . - pp. 31-43
Titre : Large-scale experiments on wave propagation over Posidonia oceanica Type de document : texte imprimé Auteurs : Vasiliki Stratigaki, Auteur ; Eleonora Manca, Auteur ; Panayotis Prinos, Auteur Année de publication : 2012 Article en page(s) : pp. 31-43 Note générale : Hydraulique Langues : Anglais (eng) Mots-clés : Artificial seagrass Artificial vegetation Large-scale experiment Posidonia oceanica Wave attenuation Wave–seagrass interaction Index. décimale : 627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques Résumé : Posidonia oceanica, the most abundant seagrass species in the Mediterranean, supports a highly bio-diverse habitat and is crucial in protecting against coastal erosion. In this work, experiments in a large-scale facility have been performed, for the measurement of wave attenuation, transmission and energy dissipation over artificial Posidonia oceanica. The effects of submergence ratio corresponding to the seagrass height divided by water depth, and seagrass density as the number of stems per square metre on the above characteristics are investigated. Measurements of wave height at different locations along the vegetation meadow indicate the wave attenuation along the Posidonia oceanica for three different submergence ratios and two seagrass densities. Results are also analysed with regard to the wave-induced flow within the meadow, and the effects of the submergence ratio and the seagrass density on the mean flow characteristics, based on data of mean velocities taken at three locations within the seagrass.
DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.tandfonline.com/doi/abs/10.1080/00221686.2011.583388 [article] Large-scale experiments on wave propagation over Posidonia oceanica [texte imprimé] / Vasiliki Stratigaki, Auteur ; Eleonora Manca, Auteur ; Panayotis Prinos, Auteur . - 2012 . - pp. 31-43.
Hydraulique
Langues : Anglais (eng)
in Journal of hydraulic research > Vol. 49 Supplément 1 (2011) . - pp. 31-43
Mots-clés : Artificial seagrass Artificial vegetation Large-scale experiment Posidonia oceanica Wave attenuation Wave–seagrass interaction Index. décimale : 627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques Résumé : Posidonia oceanica, the most abundant seagrass species in the Mediterranean, supports a highly bio-diverse habitat and is crucial in protecting against coastal erosion. In this work, experiments in a large-scale facility have been performed, for the measurement of wave attenuation, transmission and energy dissipation over artificial Posidonia oceanica. The effects of submergence ratio corresponding to the seagrass height divided by water depth, and seagrass density as the number of stems per square metre on the above characteristics are investigated. Measurements of wave height at different locations along the vegetation meadow indicate the wave attenuation along the Posidonia oceanica for three different submergence ratios and two seagrass densities. Results are also analysed with regard to the wave-induced flow within the meadow, and the effects of the submergence ratio and the seagrass density on the mean flow characteristics, based on data of mean velocities taken at three locations within the seagrass.
DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.tandfonline.com/doi/abs/10.1080/00221686.2011.583388
in Journal of hydraulic research > Vol. 49 Supplément 1 (2011) . - pp. 44-54
Titre : Full-scale experiments on a beach drainage system: hydrodynamic effects inside beach Type de document : texte imprimé Auteurs : Leonardo Damiani, Auteur ; Francesco Aristodemo, Auteur ; Alessandra Saponieri, Auteur Année de publication : 2012 Article en page(s) : pp. 44-54 Note générale : Hydraulique Langues : Anglais (eng) Mots-clés : Beach drainage system Drainage Full-scale experiment Groundwater hydrodynamic process Water table Index. décimale : 627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques Résumé : An extensive full-scale laboratory investigation on a two-dimensional physical model of a beach drainage system (BDS) was performed at “Grosser Wellen-Kanal” of Hannover, Germany. This research deals with the hydrodynamic aspects of a beach equipped with a BDS, while the morphodynamic aspects of the study are discussed in a companion paper. Knowledge of both the hydrodynamic and the morphodynamic behaviours of a drained beach allows the definition of the main design criteria. The adopted BDS was constituted by four corrugated pipes. Several drain configurations in static and dynamic conditions were considered, paying attention to water table oscillations, drains and groundwater regime and drainage discharge induced by the system start-up. The main results indicate a rise in the unsaturated beach and the presence of a hydraulic disconnection in the groundwater–drain system. The analyses yield useful hydrodynamic information influencing the general system efficiency.
DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.tandfonline.com/doi/abs/10.1080/00221686.2011.588515 [article] Full-scale experiments on a beach drainage system: hydrodynamic effects inside beach [texte imprimé] / Leonardo Damiani, Auteur ; Francesco Aristodemo, Auteur ; Alessandra Saponieri, Auteur . - 2012 . - pp. 44-54.
Hydraulique
Langues : Anglais (eng)
in Journal of hydraulic research > Vol. 49 Supplément 1 (2011) . - pp. 44-54
Mots-clés : Beach drainage system Drainage Full-scale experiment Groundwater hydrodynamic process Water table Index. décimale : 627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques Résumé : An extensive full-scale laboratory investigation on a two-dimensional physical model of a beach drainage system (BDS) was performed at “Grosser Wellen-Kanal” of Hannover, Germany. This research deals with the hydrodynamic aspects of a beach equipped with a BDS, while the morphodynamic aspects of the study are discussed in a companion paper. Knowledge of both the hydrodynamic and the morphodynamic behaviours of a drained beach allows the definition of the main design criteria. The adopted BDS was constituted by four corrugated pipes. Several drain configurations in static and dynamic conditions were considered, paying attention to water table oscillations, drains and groundwater regime and drainage discharge induced by the system start-up. The main results indicate a rise in the unsaturated beach and the presence of a hydraulic disconnection in the groundwater–drain system. The analyses yield useful hydrodynamic information influencing the general system efficiency.
DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.tandfonline.com/doi/abs/10.1080/00221686.2011.588515
in Journal of hydraulic research > Vol. 49 Supplément 1 (2011) . - pp. 55-63
Titre : Swash zone response under various wave regimes Type de document : texte imprimé Auteurs : Diego Vicinanza, Auteur ; Tom Baldock, Auteur ; Pasquale Contestabile, Auteur Année de publication : 2012 Article en page(s) : pp. 55-63 Note générale : Hydraulique Langues : Anglais (eng) Mots-clés : Beach profile Grouping wave Large wave flume Sediment transport Swash zone Index. décimale : 627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques Résumé : The modelling of swash zone (SZ) sediment transport and the resulting morphodynamics have been areas of active research over the last decade. However, many details are still to be understood, whose knowledge will be greatly advanced by the collection of high-quality data under the controlled large-scale laboratory conditions. The research describes tests carried out in the large wave flume of the Maritime Engineering Laboratory at Catalonia University of Technology, to investigate the SZ under the storm conditions. Its main aim was to compare beach-profile responses for monochromatic waves, monochromatic waves plus free long waves, bi-chromatic waves and random waves. Both erosive and accretive conditions were considered. Results discussed here were derived from the analysis of only a part of the whole data set.
DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.tandfonline.com/doi/abs/10.1080/00221686.2011.588783 [article] Swash zone response under various wave regimes [texte imprimé] / Diego Vicinanza, Auteur ; Tom Baldock, Auteur ; Pasquale Contestabile, Auteur . - 2012 . - pp. 55-63.
Hydraulique
Langues : Anglais (eng)
in Journal of hydraulic research > Vol. 49 Supplément 1 (2011) . - pp. 55-63
Mots-clés : Beach profile Grouping wave Large wave flume Sediment transport Swash zone Index. décimale : 627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques Résumé : The modelling of swash zone (SZ) sediment transport and the resulting morphodynamics have been areas of active research over the last decade. However, many details are still to be understood, whose knowledge will be greatly advanced by the collection of high-quality data under the controlled large-scale laboratory conditions. The research describes tests carried out in the large wave flume of the Maritime Engineering Laboratory at Catalonia University of Technology, to investigate the SZ under the storm conditions. Its main aim was to compare beach-profile responses for monochromatic waves, monochromatic waves plus free long waves, bi-chromatic waves and random waves. Both erosive and accretive conditions were considered. Results discussed here were derived from the analysis of only a part of the whole data set.
DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.tandfonline.com/doi/abs/10.1080/00221686.2011.588783
in Journal of hydraulic research > Vol. 49 Supplément 1 (2011) . - pp. 64-71
Titre : Measurements of wave-induced steady currents outside the surf zone Type de document : texte imprimé Auteurs : Pietro Scandura, Auteur ; Enrico Foti, Auteur Année de publication : 2012 Article en page(s) : pp. 64-71 Note générale : Hydraulique Langues : Anglais (eng) Mots-clés : Boundary layer Eulerian mass transport Sea wave Undertow Velocity measurement Index. décimale : 627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques Résumé : Experimental measurements of the steady current induced by progressive regular waves outside the surf zone are reported and discussed herein. The experiments have been conducted in a large wave flume to minimize scale effects. The velocity data were acquired using Acoustic Doppler Velocimeters. It has been observed that the mean velocity profiles have a pronounced dependence on the wave period. As it decreases, the mean velocity just below the wave trough increases in the offshore direction while close to the bottom it increases in the onshore direction. The observed qualitative trend is different from that predicted by the theory and also from that reported by other experimental campaigns. The presence of turbulence in the bottom boundary layer along with wave asymmetry partially explain these differences. However, other experimental data in the literature agree with the present results.
DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.tandfonline.com/doi/abs/10.1080/00221686.2011.591046 [article] Measurements of wave-induced steady currents outside the surf zone [texte imprimé] / Pietro Scandura, Auteur ; Enrico Foti, Auteur . - 2012 . - pp. 64-71.
Hydraulique
Langues : Anglais (eng)
in Journal of hydraulic research > Vol. 49 Supplément 1 (2011) . - pp. 64-71
Mots-clés : Boundary layer Eulerian mass transport Sea wave Undertow Velocity measurement Index. décimale : 627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques Résumé : Experimental measurements of the steady current induced by progressive regular waves outside the surf zone are reported and discussed herein. The experiments have been conducted in a large wave flume to minimize scale effects. The velocity data were acquired using Acoustic Doppler Velocimeters. It has been observed that the mean velocity profiles have a pronounced dependence on the wave period. As it decreases, the mean velocity just below the wave trough increases in the offshore direction while close to the bottom it increases in the onshore direction. The observed qualitative trend is different from that predicted by the theory and also from that reported by other experimental campaigns. The presence of turbulence in the bottom boundary layer along with wave asymmetry partially explain these differences. However, other experimental data in the literature agree with the present results.
DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.tandfonline.com/doi/abs/10.1080/00221686.2011.591046
in Journal of hydraulic research > Vol. 49 Supplément 1 (2011) . - pp. 72-80
Titre : Sediment transport in nonlinear skewed oscillatory flows : transkew experiments Type de document : texte imprimé Auteurs : Paulo A. Silva, Auteur ; Tiago Abreu, Auteur ; Francisco Sancho, Auteur Année de publication : 2012 Article en page(s) : pp. 72-80 Note générale : Hydraulique Langues : Anglais (eng) Mots-clés : Flow acceleration Sediment transport Sheet flow Wave asymmetry Wave skewness Index. décimale : 627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques Résumé : New experiments under sheet flow conditions were conducted in an oscillating water tunnel to study the effects of flow acceleration on sand transport. The simulated hydrodynamic conditions considered flow patterns that drive cross-shore sediment transport in the nearshore zone: the wave nonlinearities associated with velocity and acceleration skewness and a negative mean current, the undertow. Net transport rates were evaluated from the sediment balance equation and show that (1) the acceleration skewness in an oscillatory flow produces a net sediment transport in the direction of the highest acceleration; (2) the net transport in the presence of an opposing current is negative, against the direction of the highest acceleration, and reduces with an increase in flow acceleration; and (3) velocity skewness increases the values of the net onshore transport rates.
DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.tandfonline.com/doi/abs/10.1080/00221686.2011.592681 [article] Sediment transport in nonlinear skewed oscillatory flows : transkew experiments [texte imprimé] / Paulo A. Silva, Auteur ; Tiago Abreu, Auteur ; Francisco Sancho, Auteur . - 2012 . - pp. 72-80.
Hydraulique
Langues : Anglais (eng)
in Journal of hydraulic research > Vol. 49 Supplément 1 (2011) . - pp. 72-80
Mots-clés : Flow acceleration Sediment transport Sheet flow Wave asymmetry Wave skewness Index. décimale : 627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques Résumé : New experiments under sheet flow conditions were conducted in an oscillating water tunnel to study the effects of flow acceleration on sand transport. The simulated hydrodynamic conditions considered flow patterns that drive cross-shore sediment transport in the nearshore zone: the wave nonlinearities associated with velocity and acceleration skewness and a negative mean current, the undertow. Net transport rates were evaluated from the sediment balance equation and show that (1) the acceleration skewness in an oscillatory flow produces a net sediment transport in the direction of the highest acceleration; (2) the net transport in the presence of an opposing current is negative, against the direction of the highest acceleration, and reduces with an increase in flow acceleration; and (3) velocity skewness increases the values of the net onshore transport rates.
DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.tandfonline.com/doi/abs/10.1080/00221686.2011.592681
in Journal of hydraulic research > Vol. 49 Supplément 1 (2011) . - pp. 81-90
Titre : Experimental spatial correlation of wave loads on front decks Type de document : texte imprimé Auteurs : Lamberti, Alberto, Auteur ; Luca Martinelli, Auteur ; M. Gabriella Gaeta, Auteur Année de publication : 2012 Article en page(s) : pp. 81-90 Note générale : Hydraulique Langues : Anglais (eng) Mots-clés : Jetty Large-scale experiment Logging frequency Spatial correlation Wave impact Index. décimale : 627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques Résumé : The large-scale experiments described herein were carried out at Forschungs-Zentrum Küste (FZK), Hannover (Germany) by a research team of the Universities of Bologna, Edinburgh, Southampton, Plymouth, HR Wallingford and the Coast and Harbor Engineering, Inc. (USA). Wave-induced loads on close-to-prototype jetties were measured. Experimental evidence indicates the presence of force peaks with a short space–time correlation structure, carried by convective processes with a velocity of the order of the wave celerity. The important limitations imposed by the imperfect spatial resolution of pressure transducers on the integrated force are discussed. The finding may be of interest to design laboratory tests involving rapidly-varied processes such as impact waves and the subsequent analysis phase, which may lead to gross errors in the evaluation of the integral process. A guideline to select the cutting frequency is provided.
DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.tandfonline.com/doi/abs/10.1080/00221686.2011.636933 [article] Experimental spatial correlation of wave loads on front decks [texte imprimé] / Lamberti, Alberto, Auteur ; Luca Martinelli, Auteur ; M. Gabriella Gaeta, Auteur . - 2012 . - pp. 81-90.
Hydraulique
Langues : Anglais (eng)
in Journal of hydraulic research > Vol. 49 Supplément 1 (2011) . - pp. 81-90
Mots-clés : Jetty Large-scale experiment Logging frequency Spatial correlation Wave impact Index. décimale : 627 Ingénierie des cours d'eau naturels, des ports, des rades et des cotes. Installations de navigation, de dragage, de récupération et de sauvetage. Barrages et centrales électriques hydrauliques Résumé : The large-scale experiments described herein were carried out at Forschungs-Zentrum Küste (FZK), Hannover (Germany) by a research team of the Universities of Bologna, Edinburgh, Southampton, Plymouth, HR Wallingford and the Coast and Harbor Engineering, Inc. (USA). Wave-induced loads on close-to-prototype jetties were measured. Experimental evidence indicates the presence of force peaks with a short space–time correlation structure, carried by convective processes with a velocity of the order of the wave celerity. The important limitations imposed by the imperfect spatial resolution of pressure transducers on the integrated force are discussed. The finding may be of interest to design laboratory tests involving rapidly-varied processes such as impact waves and the subsequent analysis phase, which may lead to gross errors in the evaluation of the integral process. A guideline to select the cutting frequency is provided.
DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.tandfonline.com/doi/abs/10.1080/00221686.2011.636933
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