SPH modeling of shallow-water coastal flows / Mathieu de Leffe in Journal of hydraulic research, Vol. 48 N° spécial (2010)  

Public ISBD [article]  inJournal of hydraulic research > Vol. 48 N° spécial (2010) . - pp. 118-125 Titre : SPH modeling of shallow-water coastal flows Titre original : Modélisation SPH d'écoulements côtiers en eau peu profonde Type de document : texte imprimé Auteurs : Mathieu de Leffe, Auteur ; David le Touzé, Auteur ; Bertrand Alessandrini, Auteur Année de publication : 2010 Article en page(s) : pp. 118-125 Note générale : Hydraulique Résumés en Anglais et Français Langues : Anglais (eng) Mots-clés : Coastal area flooding engineering Shallow-water flow Smoothed particle hydrodynamics Tsunami 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 : In the present paper, a Smoothed Particle Hydrodynamics (SPH) modeling of the shallow water equations is presented. The objective of this modeling is to perform flooding simulations involving complex bathymetries of sea bottom and dry land. The formulation is first detailed. Its implementation is then described, including specific procedures making possible to follow the expansion of the fluid domain during flooding simulations. An anisotropic kernel with variable smoothing length is especially used, as well as a periodic redistribution of the particles.A number of validation tests are performed. The model results are first checked on the case of a dam break on a flat dry bottom in one and two dimensions. Then more complex two-dimensional cases are simulated and compared to other models and experiments, e.g. a dam break flooding a slope of complex shape, and a solitary wave running up an island. DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.journalhydraulicresearch.com [article] SPH modeling of shallow-water coastal flows = Modélisation SPH d'écoulements côtiers en eau peu profonde [texte imprimé] / Mathieu de Leffe, Auteur ; David le Touzé, Auteur ; Bertrand Alessandrini, Auteur . - 2010 . - pp. 118-125. Hydraulique Résumés en Anglais et Français Langues : Anglais (eng) in Journal of hydraulic research > Vol. 48 N° spécial (2010) . - pp. 118-125 Mots-clés : Coastal area flooding engineering Shallow-water flow Smoothed particle hydrodynamics Tsunami 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 : In the present paper, a Smoothed Particle Hydrodynamics (SPH) modeling of the shallow water equations is presented. The objective of this modeling is to perform flooding simulations involving complex bathymetries of sea bottom and dry land. The formulation is first detailed. Its implementation is then described, including specific procedures making possible to follow the expansion of the fluid domain during flooding simulations. An anisotropic kernel with variable smoothing length is especially used, as well as a periodic redistribution of the particles.A number of validation tests are performed. The model results are first checked on the case of a dam break on a flat dry bottom in one and two dimensions. Then more complex two-dimensional cases are simulated and compared to other models and experiments, e.g. a dam break flooding a slope of complex shape, and a solitary wave running up an island. DEWEY : 627 ISSN : 0022-1686 En ligne : http://www.journalhydraulicresearch.com

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