In the present work, the potential applicability of fully two-dimensional (2D) hy-drodynamic models to regional-scale flood simulations is verified by assessing the residual flood hazard in a vast lowland region (> 3500 km2) threatened by possible inundations due to levee collapses in case of extreme flood events on the Po River (Italy). Thanks to the adoption of an efficient GPU-accelerated 2D shallow-water code (PARFLOOD, developed by the authors), the simulations of several hypothetical inundation scenarios could be run using a grid with an ade-quately fine resolution, still maintaining high ratios of physical to computational time, in the order of 50-100. The feasibility of regional-scale fully 2D flood modelling is thus confirmed.
Regional-scale 2D hydraulic modelling for the assessment of the residual flood hazard due to levee breaches / Dazzi, S.; Mignosa, P.; Pianforini, M.; Vacondio, R.. - (2022). (Intervento presentato al convegno River Flow 2022 - 11th International Conference on Fluvial Hydraulics tenutosi a Kingston and Ottawa (Canada) - virtual conference nel 8-10 novembre 2022).
Regional-scale 2D hydraulic modelling for the assessment of the residual flood hazard due to levee breaches
S. Dazzi
;P. Mignosa;M. Pianforini;R. Vacondio
2022-01-01
Abstract
In the present work, the potential applicability of fully two-dimensional (2D) hy-drodynamic models to regional-scale flood simulations is verified by assessing the residual flood hazard in a vast lowland region (> 3500 km2) threatened by possible inundations due to levee collapses in case of extreme flood events on the Po River (Italy). Thanks to the adoption of an efficient GPU-accelerated 2D shallow-water code (PARFLOOD, developed by the authors), the simulations of several hypothetical inundation scenarios could be run using a grid with an ade-quately fine resolution, still maintaining high ratios of physical to computational time, in the order of 50-100. The feasibility of regional-scale fully 2D flood modelling is thus confirmed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
