Basile Lavoie et Tew-Fik Mahdi
Article de revue (2017)
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Abstract
This article presents a comparison between two two-dimensional finite volume flood propagation models: SRH-2D and Hydro_AS-2D. The models are compared using an experimental dam-break test case provided by Soares-Frazão (J Hydraul Res, 2007. doi: 10.1080/00221686.2007.9521829). Four progressively refined meshes are used, and both models react adequately to mesh and time step refinement. Hydro_AS-2D shows some unphysical oscillations with the finest mesh and a certain loss of accuracy. For that test case, Hydro_AS-2D is more accurate for all meshes and generally faster than SRH-2D. Hydro_AS-2D reacts well to automatic calibration with PEST, whereas SRH-2D has some difficulties in retrieving the suggested Manning's roughness coefficient.
Mots clés
Model comparison, Two-dimensional flow modeling, Hydro_AS-2D, SRH-2D, Automatic calibration
Sujet(s): |
1000 Génie civil > 1000 Génie civil 1000 Génie civil > 1006 Génie hydrologique |
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Département: | Département des génies civil, géologique et des mines |
Organismes subventionnaires: | CRSNG/NSERC |
Numéro de subvention: | RGPIN-2016-06413 |
URL de PolyPublie: | https://publications.polymtl.ca/2999/ |
Titre de la revue: | Natural Hazards (vol. 86, no 3) |
Maison d'édition: | Springer |
DOI: | 10.1007/s11069-016-2737-7 |
URL officielle: | https://doi.org/10.1007/s11069-016-2737-7 |
Date du dépôt: | 26 févr. 2018 15:43 |
Dernière modification: | 26 sept. 2024 21:43 |
Citer en APA 7: | Lavoie, B., & Mahdi, T.-F. (2017). Comparison of two-dimensional flood propagation models: SRH-2D and Hydro_AS-2D. Natural Hazards, 86(3), 1207-1222. https://doi.org/10.1007/s11069-016-2737-7 |
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