Investigation of the effects of surface gravity waves on the distribution of hydrodynamic pressures by the finite element method / Hadjer Dellil (2025)

Public ISBD Titre : Investigation of the effects of surface gravity waves on the distribution of hydrodynamic pressures by the finite element method : case of a vertical rigid dam Type de document : document électronique Auteurs : Hadjer Dellil, Auteur ; Abdelmadjid Tadjadit, Directeur de thèse Editeur : [S.l.] : [s.n.] Année de publication : 2025 Importance : 1 fichier PDF (3.2 Mo) Présentation : ill. Note générale : Mode d'accès : accès au texte intégral par intranet. Mémoire de Projet de Fin d’Études : Génie Civil : Alger, École Nationale Polytechnique : 2025 Bibliogr. p. 67-69 .- Annexe Langues : Anglais (eng) Mots-clés : Surface gravity waves Hydrodynamic pressures Rigid dam Finite element me-thod El Fodda Dam Seismic responses Index. décimale : PB01325 Résumé : This study examines the influence of surface gravity waves on the hydrodynamic pressures exerted on a rigid vertical dam during horizontal ground motions. Using the Finite Element Method for both incompressible and compressible fluid models, hydrodynamic responses are quantified. By accounting for surface-wave effects through a linearized free-surface condition, the analysis ensures their consistent influence. The El Fodda gravity dam serves as a case study, with outcomes assessed in both the time and frequency domains to highlight critical impacts, comparing situations with and without surface wave effects. These findings provide a foundation for interpreting how different wave effects manifest under various conditions. Building on these results, the analysis shows that surface waves have the most influence at low frequencies. At these levels, there is a substantial reduction in base pressures. As excitation frequency increases, their effect weakens, and compressibility governs the response, especially during seismic events. This behavior matches trends reported in the specialized literature. It highlights the need to distinguish surface-waves and compressional effects when assessing dam safety. Investigation of the effects of surface gravity waves on the distribution of hydrodynamic pressures by the finite element method : case of a vertical rigid dam [document électronique] / Hadjer Dellil, Auteur ; Abdelmadjid Tadjadit, Directeur de thèse . - [S.l.] : [s.n.], 2025 . - 1 fichier PDF (3.2 Mo) : ill. Mode d'accès : accès au texte intégral par intranet. Mémoire de Projet de Fin d’Études : Génie Civil : Alger, École Nationale Polytechnique : 2025 Bibliogr. p. 67-69 .- Annexe Langues : Anglais (eng) Mots-clés : Surface gravity waves Hydrodynamic pressures Rigid dam Finite element me-thod El Fodda Dam Seismic responses Index. décimale : PB01325 Résumé : This study examines the influence of surface gravity waves on the hydrodynamic pressures exerted on a rigid vertical dam during horizontal ground motions. Using the Finite Element Method for both incompressible and compressible fluid models, hydrodynamic responses are quantified. By accounting for surface-wave effects through a linearized free-surface condition, the analysis ensures their consistent influence. The El Fodda gravity dam serves as a case study, with outcomes assessed in both the time and frequency domains to highlight critical impacts, comparing situations with and without surface wave effects. These findings provide a foundation for interpreting how different wave effects manifest under various conditions. Building on these results, the analysis shows that surface waves have the most influence at low frequencies. At these levels, there is a substantial reduction in base pressures. As excitation frequency increases, their effect weakens, and compressibility governs the response, especially during seismic events. This behavior matches trends reported in the specialized literature. It highlights the need to distinguish surface-waves and compressional effects when assessing dam safety.

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Code-barres	Cote	Support	Localisation	Section	Disponibilité	Spécialité	Etat_Exemplaire
EP01018	PB01325	Ressources électroniques	Bibliothèque centrale	Projet Fin d'Etudes	Disponible	Genie_civil	Téléchargeable