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Auteur Benedict D. Rogers |
Documents disponibles écrits par cet auteur (2)



Simulation of caisson breakwater movement using 2-D SPH / Benedict D. Rogers in Journal of hydraulic research, Vol. 48 N° spécial (2010)
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[article]
Titre : Simulation of caisson breakwater movement using 2-D SPH Titre original : Simulation du mouvement d'un caisson de brise-lames avec SPH 2D Type de document : texte imprimé Auteurs : Benedict D. Rogers, Auteur ; Robert A. Dalrymple, Auteur ; Peter K. Stansby, Auteur Année de publication : 2010 Article en page(s) : pp. 135-141 Note générale : Hydraulique
Résumés en Anglais et Français
Langues : Anglais (eng) Mots-clés : Caisson breakwater Displacement Impact forces Periodic waves Smoothed particle hydrodynamics 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 : Smoothed Particle Hydrodynamics (SPH) is used to simulate the movement of a caisson breakwater in the surf zone. The open-source code SPHysics is used with a Riemann solver-based formulation. The friction force between the moving caisson and the bed is modelled with a transition from static to dynamic friction force. Results are presented for two-dimensional simulations and compared with experiments for the movement of a caisson breakwater under the forcing of periodic waves. Promising agreement with experimental data is obtained for the displacement and the horizontal forces on the caisson. It is demonstrated that the peak impact forces are better captured using finer resolution and that a Riemann solver-based formulation produces a better agreement with experiment for the predicted caisson displacement than conventional SPH.
DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.journalhydraulicresearch.com
in Journal of hydraulic research > Vol. 48 N° spécial (2010) . - pp. 135-141[article] Simulation of caisson breakwater movement using 2-D SPH = Simulation du mouvement d'un caisson de brise-lames avec SPH 2D [texte imprimé] / Benedict D. Rogers, Auteur ; Robert A. Dalrymple, Auteur ; Peter K. Stansby, Auteur . - 2010 . - pp. 135-141.
Hydraulique
Résumés en Anglais et Français
Langues : Anglais (eng)
in Journal of hydraulic research > Vol. 48 N° spécial (2010) . - pp. 135-141
Mots-clés : Caisson breakwater Displacement Impact forces Periodic waves Smoothed particle hydrodynamics 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 : Smoothed Particle Hydrodynamics (SPH) is used to simulate the movement of a caisson breakwater in the surf zone. The open-source code SPHysics is used with a Riemann solver-based formulation. The friction force between the moving caisson and the bed is modelled with a transition from static to dynamic friction force. Results are presented for two-dimensional simulations and compared with experiments for the movement of a caisson breakwater under the forcing of periodic waves. Promising agreement with experimental data is obtained for the displacement and the horizontal forces on the caisson. It is demonstrated that the peak impact forces are better captured using finer resolution and that a Riemann solver-based formulation produces a better agreement with experiment for the predicted caisson displacement than conventional SPH.
DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.journalhydraulicresearch.com Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire State-of-the-art of classical SPH for free-surface flows / Moncho Gomez-Gesteira in Journal of hydraulic research, Vol. 48 N° spécial (2010)
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[article]
Titre : State-of-the-art of classical SPH for free-surface flows Titre original : Etat de l'art de la méthode SPH pour les écoulements à surface libre Type de document : texte imprimé Auteurs : Moncho Gomez-Gesteira, Auteur ; Benedict D. Rogers, Auteur ; Robert A. Dalrymple, Auteur Année de publication : 2010 Article en page(s) : pp. 6-27 Note générale : Hydraulique
Résumés en Anglais et Français
Langues : Anglais (eng) Mots-clés : Computational fluids Dam break Density correction Kernel Smoothed particle hydrodynamics SPH 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 : Smoothed Particle Hydrodynamics (SPH) is the most widely established mesh-free method which has been used in several fields as astrophysics, solids mechanics and fluid dynamics. In the particular case of computational fluid dynamics, the model is beginning to reach a maturity that allows carrying out detailed quantitative comparisons with laboratory experiments. Here the state-of-the-art of the classical SPH formulation for free-surface flow problems is described in detail. This is demonstrated using dam-break simulations in 2-D and 3-D. The foundations of the method will be presented using different derivations based on the method of interpolants and on the moving least-squares approach. Different methods to improve the classic SPH approach such as the use of density filters and the corrections of the kernel function and its gradient are examined and tested on some laboratory cases.
DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.journalhydraulicresearch.com
in Journal of hydraulic research > Vol. 48 N° spécial (2010) . - pp. 6-27[article] State-of-the-art of classical SPH for free-surface flows = Etat de l'art de la méthode SPH pour les écoulements à surface libre [texte imprimé] / Moncho Gomez-Gesteira, Auteur ; Benedict D. Rogers, Auteur ; Robert A. Dalrymple, Auteur . - 2010 . - pp. 6-27.
Hydraulique
Résumés en Anglais et Français
Langues : Anglais (eng)
in Journal of hydraulic research > Vol. 48 N° spécial (2010) . - pp. 6-27
Mots-clés : Computational fluids Dam break Density correction Kernel Smoothed particle hydrodynamics SPH 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 : Smoothed Particle Hydrodynamics (SPH) is the most widely established mesh-free method which has been used in several fields as astrophysics, solids mechanics and fluid dynamics. In the particular case of computational fluid dynamics, the model is beginning to reach a maturity that allows carrying out detailed quantitative comparisons with laboratory experiments. Here the state-of-the-art of the classical SPH formulation for free-surface flow problems is described in detail. This is demonstrated using dam-break simulations in 2-D and 3-D. The foundations of the method will be presented using different derivations based on the method of interpolants and on the moving least-squares approach. Different methods to improve the classic SPH approach such as the use of density filters and the corrections of the kernel function and its gradient are examined and tested on some laboratory cases.
DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.journalhydraulicresearch.com Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire