Malpasset dam-break revisited with two-dimensional computations

Hervouet, Jean‐Michel; Petitjean, Alain

doi:10.1080/00221689909498511

Cited by 94 publications

(68 citation statements)

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“…As it shows, good agreement has been achieved. Also, our results are slightly better than those of TELEMAC (Hervouet and Petitjean, 1999) and those from Valiani et al (2002). The detailed comparisons, concerning the maximum water level reached at the valley sides, among our numerical predictions, TELEMAC's results, Valiani's data and field data are shown in Table 5.…”

Section: Malpasset Dam-break Simulationmentioning

confidence: 81%

“…Because of its complex topography and availability of measured data, the Malpasset dambreak case was selected as a benchmark test example for dam-break models in the CADAM project (Goutal, 1999). More detailed descriptions about Malpasset dam-break test case can be found in literature (Goutal, 1999;Hervouet and Petitjean, 1999;Valiani et al, 2002). In the computation, a hybrid unstructured grid has been used, as illustrated in Fig.…”

Section: Malpasset Dam-break Simulationmentioning

confidence: 99%

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Well-Balanced Finite Volume Scheme for Shallow Water Flooding and Drying Over Arbitrary Topography

Huang

Zhang

Pei

2013

Engineering Applications of Computational Fluid Mechanics

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ABSTRACT:The depth-averaged shallow water equations based on Godunov-type finite volume method are developed for unsteady flow over arbitrary topography with moving lateral boundaries caused by flooding or recession. An HLLC approximate Riemann solver is invoked to evaluate fluxes. A linear reconstruction procedure with WBAP-L1 limiter and modified 4 stages Runge-Kutta time stepping are employed to provide a second order accuracy that is free from spurious oscillations. Also, a robust technique is presented to efficiently and accurately simulate the movement of wet/dry fronts. The model predictions are compared with analytical solutions, experimental data and a two-dimensional dam-break event. Numerical results show that the model performs satisfactorily with respect to its effectiveness and robustness and thus has good application prospects.

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Section: Malpasset Dam-break Simulationmentioning

confidence: 81%

Section: Malpasset Dam-break Simulationmentioning

confidence: 99%

Well-Balanced Finite Volume Scheme for Shallow Water Flooding and Drying Over Arbitrary Topography

Huang

Zhang

Pei

2013

Engineering Applications of Computational Fluid Mechanics

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“…The failure of the Malpasset dam in 1959 has promoted researcher to develop and to calibrate several one-dimensional and two-dimensional numerical models capable of predicting the consequences of a potential dam break in a realistic manner, of which we mention the studies of HERVOUET and PETIJEAN [1999], who modelled the phenomenon based on a finite element background, ABDUL [2000] and TING- SANCHALI and RATTANAPITIKON [1999] who treated the two-dimensional modelling of dam wave propagation on an initially dry bed. As well, VALIANI and CALEFFI [2015] who used numerical models based on finite volume backgrounds to model dam break waves.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of potential dam break flood risks of the cascade dams Mexa and Bougous (El Taref, Algeria)

Bouchehed¹,

Mihoubi²,

Derdous³

et al. 2017

Journal of Water and Land Development

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The implementation of Bougous dam at 5 km upstream of Mexa dam permits to compensate the storage capacity and to reduce sediment yields in the later, however, these advantages must be associated to the fact that the presence of two large dams in the region poses in case of a dam break event a potential threat to human life and property. Indeed, in this study a numerical simulation of the dam break wave propagation resulting from the failure of the two dams was performed using the two-dimensional hydrodynamic model Telemac-2D, in order to estimate the impacts on constructions located in the downstream valley. The simulation results exported to GIS platform allowed the elaboration of cartographic materials depicting the hydraulic characteristics of the flood wave and its arrival times at key locations, which constitute very useful information for the authorities to avoid significant loss in case of the failure of Bougous and Mexa dams.

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“…The failure of Malpasset dam (France) was also studied in a physical model at a scale of 1:400. More recently, the results of this model [2,3] have been utilized to validate the performance of some numerical models under the scope of the European Project 'Concerted Action on Dam Break Modelling (CADAM)'.…”

Section: Past Research On Physical Modelling Of Dam-break Floodsmentioning

confidence: 99%

Integration of computational and experimental models for dam-break flood risk analysis

Viseu¹,

Almeida²,

Franco³

2014

Int. J. SAFE

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The knowledge of the maximum water depths associated with dam-break fl oods is crucial for the population early warning and evacuation plan design, minimizing the losses due to dam failures. This paper presents an experimental dam-break fl ood propagation study performed in a physical model and a two-dimensional numerical model suitable to simulate fl ow propagation on complex topography. First, the numerical model and the physical model of the River Arade valley, located in the south of Portugal (Algarve), are described. A comparison between computed results and measured data is undertaken and uncertainty in the numerical model predictions is analysed. In this paper, a physical model representing a real river valley stretch is used to validate a dam-break fl ood numerical model and to get information related to uncertainties in what concerns the prediction of the hazard (fl ood) propagation simulation. In fact, for such rare events as dam-break fl oods, the comparison between the results obtained in a physical model and by a numerical model is one of the best sources of uncertainty characterization.The physical model represents a reach of the River Arade valley, located in the south of Portugal. Experimental results refer to water depths measured during tests realized for both steady and unsteady fl ow regimes. The numerical model was developed for the simulation of two-dimensional dam-break fl ood waves in irregular topography valleys where the one-dimensional approach loses validity, such as in fl ood plains and where strong variation of the cross section or alignment occurs. It is based on a total variation diminishing (TVD) extension of the two-dimensional MacCormack method and in a scheme to ensure the capacity to simulate fl ows in domains with general irregular topography.

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Malpasset dam-break revisited with two-dimensional computations

Cited by 94 publications

References 1 publication

Well-Balanced Finite Volume Scheme for Shallow Water Flooding and Drying Over Arbitrary Topography

Well-Balanced Finite Volume Scheme for Shallow Water Flooding and Drying Over Arbitrary Topography

Evaluation of potential dam break flood risks of the cascade dams Mexa and Bougous (El Taref, Algeria)

Integration of computational and experimental models for dam-break flood risk analysis

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