1935 Sella Zerbino Dam-Break Case Revisited: A New Hydrologic and Hydraulic Analysis

Petaccia, Gabriella; Natale, L.

doi:10.1061/(asce)hy.1943-7900.0001760

Cited by 12 publications

(8 citation statements)

References 34 publications

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“…The numerical model ORSA2D is thus modified to solve the conservative form of Equation (6). ORSA2D is a hydrodynamic model that follows a finite-volume approach, implementing a Roe-Riemann scheme to solve the SWE [34]. It can model both steady and unsteady flow, with proper boundary conditions that can be constant or time dependent.…”

Section: Outlines Of the Coupled Systemmentioning

confidence: 99%

“…It can model both steady and unsteady flow, with proper boundary conditions that can be constant or time dependent. The numerical approach for the coupled solution is essentially the same adopted for the solution of the SWE alone [34], the main difference being the additional unknown included in the new system of Equations (6), which results in an additional eigenvalue and an additional eigenvector, plus one element for the others, of the approximated flux Jacobian.…”

Section: Outlines Of the Coupled Systemmentioning

confidence: 99%

“…where the R and L subscripts refer to the considered side of an edge of the cell (respectively, right, or outer, and left, or inner, side of the edge, Figure The boundary conditions for the system of equation Equation 6, cons are the standard ones usually included in hydrodynamic models (e.g., wat charge hydrograph, rating curve, Froude number hydrograph [34]).…”

Section: Outlines Of the Coupled Systemmentioning

confidence: 99%

“…and it is implemented as follows: The boundary conditions for the system of equation Equation 6, considering water, are the standard ones usually included in hydrodynamic models (e.g., water stage or discharge hydrograph, rating curve, Froude number hydrograph [34]).…”

Section: Outlines Of the Coupled Systemmentioning

confidence: 99%

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A One-Way Coupled Hydrodynamic Advection-Diffusion Model to Simulate Congested Large Wood Transport

et al. 2021

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An advection-diffusion model is proposed to simulate large wood transport during high flows. The mathematical model is derived from the wood mass balance, taking into consideration both the wood mass concentration and the log orientation, which affects log transport and, most importantly, wood accumulation. Focusing on wood mass transport, the advection-diffusion equation is implemented in a hydrodynamic model to provide a one-way coupled solution of the flow and of the floating wood mass. The model is tested on a large series of flume experiments, involving at least 30 logs and different control parameters (flow Froude number, log length, diameter, release point). The validation through the experimental data shows that the proposed model can predict the correct displacement of the most probable position of the logs and to simulate with a sufficient accuracy the planar diffusion of the wooden mass. Transversal wood distribution is more accurate than the streamwise one, indicating that a higher control on the longitudinal diffusion needs to be implemented.

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Section: Outlines Of the Coupled Systemmentioning

confidence: 99%

Section: Outlines Of the Coupled Systemmentioning

confidence: 99%

Section: Outlines Of the Coupled Systemmentioning

confidence: 99%

Section: Outlines Of the Coupled Systemmentioning

confidence: 99%

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A One-Way Coupled Hydrodynamic Advection-Diffusion Model to Simulate Congested Large Wood Transport

et al. 2021

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“…For the flooded areas, data for the calibration of roughness are usually unavailable. In literature applications, values for rural areas are highly variable, covering a range between 10 and 40 m 1/3 s −1 [66][67][68][69]. For the low plain areas of Emilia-Romagna, indications can be obtained from the work by [34], where a Strickler's coefficient equal to 20 m 1/3 s −1 was calibrated to reproduce the well-known dynamics of the inundation caused by an embankment breach.…”

Section: Domain Roughnessmentioning

confidence: 99%

Hydrological and Hydraulic Flood Hazard Modeling in Poorly Gauged Catchments: An Analysis in Northern Italy

et al. 2021

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Flood hazard is assessed for a watershed with scarce hydrological data in the lower plain of Northern Italy, where the current defense system is inadequate to protect a highly populated urban area located at a river confluence and crossed by numerous bridges. An integrated approach is adopted. Firstly, to overcome the scarcity of data, a regional flood frequency analysis is performed to derive synthetic design hydrographs, with an original approach to obtain the flow reduction curve from recorded water stages. The hydrographs are then imposed as upstream boundary conditions for hydraulic modeling using the fully 2D shallow water model PARFLOOD with the recently proposed inclusion of bridges. High-resolution simulations of the potential flooding in the urban center and surrounding areas are, therefore, performed as a novel extensive application of a truly 2D framework for bridge modeling. Moreover, simulated flooded areas and water levels, with and without bridges, are compared to quantify the interference of the crossing structures and to assess the effectiveness of a structural measure for flood hazard reduction, i.e., bridge adaptation. This work shows how the use of an integrated hydrological–hydraulic approach can be useful for infrastructure design and civil protection purposes in a poorly gauged watershed.

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New formulation of the two-dimensional steep-slope shallow water equations. Part I: Theory and analysis

Maranzoni

Tomirotti²

2022

Advances in Water Resources

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1935 Sella Zerbino Dam-Break Case Revisited: A New Hydrologic and Hydraulic Analysis

Cited by 12 publications

References 34 publications

A One-Way Coupled Hydrodynamic Advection-Diffusion Model to Simulate Congested Large Wood Transport

A One-Way Coupled Hydrodynamic Advection-Diffusion Model to Simulate Congested Large Wood Transport

Hydrological and Hydraulic Flood Hazard Modeling in Poorly Gauged Catchments: An Analysis in Northern Italy

New formulation of the two-dimensional steep-slope shallow water equations. Part I: Theory and analysis

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