References of "Dewals, Benjamin"
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See detailFlushing operations with limited sediment availability
Dewals, Benjamin ULg; Brasseur, Nicolas; Erpicum, Sébastien ULg et al

in Proc. 33rd IAHR Congress: Water Engineering for a Sustainable Environment (2009)

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See detailSocial Flood Impacts in Urban Areas: Integration of Detailed Flow Modelling and Social Analysis
Ernst, Julien ULg; Coninx, Ingrid; Dewals, Benjamin ULg et al

in Proc. 33rd IAHR Congress: Water Engineering for a Sustainable Environment (2009)

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See detailComputational Hemodynamics Coupled with Mechanical Behaviour of the Surrounded Materials, in the Specific Case of the Brachial Artery
Paulus, Raphaël ULg; Erpicum, Sébastien ULg; Dewals, Benjamin ULg et al

in Proceedings of Biomed 2009 - Eighth International Conference on Modelling in Medicine and Biology (2009)

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See detailContinuous formulation for bottom friction in free surface flows modelling
Machiels, Olivier ULg; Erpicum, Sébastien ULg; Archambeau, Pierre ULg et al

in River Basin Management V (2009)

Bottom friction modelling is an important step in river flows computation with 1D or 2D solvers. It is usually performed using empirical laws established for uniform flow conditions or a modern approach ... [more ▼]

Bottom friction modelling is an important step in river flows computation with 1D or 2D solvers. It is usually performed using empirical laws established for uniform flow conditions or a modern approach based on turbulence analysis. Following the definition of the flow validity field of the main friction laws proposed in the literature, an original continuous formulation has been developed. It is suited to model river flows with a wide range of properties (water depth, discharge, roughness…). The efficiency of this new formulation, theoretically established and numerically adjusted, is demonstrated through various practical applications. [less ▲]

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See detailEtude sur modèle physique des capacités hydrauliques de l’évacuateur de crues du barrage de la Petite Rhue (Cantal - 15)
Erpicum, Sébastien ULg; Dewals, Benjamin ULg; Pirotton, Michel ULg et al

in Actes du Colloque Dimensionnement et Fonctionnement des Evacuateurs de crues (2009)

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See detailTowards an Integrated Decision Tool for Adaptation Measures - Case studuy: floods. Final report Phase I
Giron, Eve; Coninx, Ingrid; Dewals, Benjamin ULg et al

Report (2009)

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See detailApproches numériques et expérimentales en appui à la gestion durable des sédiments
Dewals, Benjamin ULg; Erpicum, Sébastien ULg; Archambeau, Pierre ULg et al

in Proc. Morphodynamique et gestion des sédiments dans les estuaires, les baies et les deltas (2009)

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See detailDam-break flow numerical modeling considering structural impacts on buildings
Erpicum, Sébastien ULg; Archambeau, Pierre ULg; Dewals, Benjamin ULg et al

in Proc. 33rd IAHR Congress: Water Engineering for a Sustainable Environment (2009)

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See detailAnalyse expérimentale du fonctionnement hydraulique des déversoirs en touches de piano
Machiels, Olivier ULg; Erpicum, Sébastien ULg; Archambeau, Pierre ULg et al

in Actes du Colloque Dimensionnement et Fonctionnement des Evacuateurs de crues (2009)

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See detailBottom friction formulations for free surface flow modeling
Machiels, Olivier ULg; Erpicum, Sébastien ULg; Archambeau, Pierre ULg et al

in 8th NCTAM Congress (2009)

Bottom friction modeling is an important step in river flows computation with 1D or 2D solvers. It is usually performed using empirical laws established for uniform flow conditions or a modern approach ... [more ▼]

Bottom friction modeling is an important step in river flows computation with 1D or 2D solvers. It is usually performed using empirical laws established for uniform flow conditions or a modern approach based on turbulence analysis. Following the definition of the flow validity field of the main friction laws proposed in the iterature, an original continuous formulation has been developed. It is suited to model river flows with a high variability of properties (water depth, discharge, roughness…). The efficiency of this new formulation, theoretically established and numerically adjusted, is demonstrated through various practical applications. [less ▲]

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See detailLarge scale experimental study of piano key weirs
Machiels, Olivier ULg; Erpicum, Sébastien ULg; Archambeau, Pierre ULg et al

in Proc. 33rd IAHR Congress: Water Engineering for a Sustainable Environment (2009)

Piano Key Weirs (PKW) are a new type of weir, showing very good flood release capacities as well as strong economic and structural benefits. However, lacks of understanding persist about the flow ... [more ▼]

Piano Key Weirs (PKW) are a new type of weir, showing very good flood release capacities as well as strong economic and structural benefits. However, lacks of understanding persist about the flow conditions on such structures. With the goal to fill some of these lacks, a combined experimental and numerical study has been undertaken at the Laboratory of Structures Hydraulics of the University of Liege. This paper presents the goals and the scientific strategy of this research. The first results of experiments being carried out on a large physical model of PKW are also depicted. These experiments lead to characterization of the flow behavior for low heads and enable to highlight the influence of the crest thickness and the outlet slope on the release capacity. [less ▲]

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See detailDam Break Flow Modelling and Geographical Distribution of the Roughness Coefficient
Paulus, Raphaël ULg; Ernst, Julien ULg; Dewals, Benjamin ULg et al

in Proc. 33rd IAHR Congress: Water Engineering for a Sustainable Environment (pp. 2429-2436) (2009)

Dam break flow modelling is a major field of research. In order to enable risk analysis in the downstream valleys of dams, 2D numerical simulations are of prime interest. These are based on the ... [more ▼]

Dam break flow modelling is a major field of research. In order to enable risk analysis in the downstream valleys of dams, 2D numerical simulations are of prime interest. These are based on the conservative set of shallow water equations. Beyond their numerical implementation, the challenge of the computation relies on the ability to handle very huge sets of high-precision data, in order to get the highest possible accuracy, whereas the computational time must remain realistic for simulations carried out on real valleys topography. In this paper, a simulation on about 2 500 000 cells is presented. Particularly, the results are compared and discussed regarding especially the exploitation of landuse data for the roughness. Beyond the examples of validation, the relevance of the developed methodology appears to be essential in the framework of risk analysis. [less ▲]

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See detailA modeling system handling the wide range of time scales involved in sediment transport processes
Dewals, Benjamin ULg; Erpicum, Sébastien ULg; Archambeau, Pierre ULg et al

in Proc. 6th International SedNet conference (2009)

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See detailFrom Hydrology to Detailed Risk Analysis, a Consistent Micro-Scale Approach
Paulus, Raphaël ULg; Detrembleur, Sylvain ULg; Ernst, Julien et al

Speech/Talk (2009)

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See detailComparison of 2D turbulence models for steady flows computation in a macro-rough channel
Erpicum, Sébastien ULg; Meile, Tobias; Dewals, Benjamin ULg et al

in 2nd International Symposium on Shallow Flows (2008, December 11)

A 2D numerical flow model, developed at the Laboratory of Hydrology, Applied Hydrodynamics and Hydraulic Constructions (HACH) at ULg, has been applied to flows in a macro-rough channel using three ... [more ▼]

A 2D numerical flow model, developed at the Laboratory of Hydrology, Applied Hydrodynamics and Hydraulic Constructions (HACH) at ULg, has been applied to flows in a macro-rough channel using three different approaches to compute the turbulence effects. Both the first and second ones are based on algebraic expressions of the turbulent viscosity, and the third one uses a depth-integrated k- type model involving two additional partial differential equations. Data for the comparison have been provided by experiments conducted at the Laboratory of Hydraulic Constructions (LCH) at EPFL, showing different two-dimensional flow characteristics in varied configurations of large scale cavities in depressions at the side walls of the flume. Despite the strongly different modeling approaches used in the three models to handle the turbulence effects, the numerical models give generally similar and satisfactory agreement between experimental and numerical results regarding backwater curves. [less ▲]

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See detailContribution à l'émission RTBF Planète Nature
Dewals, Benjamin ULg

Diverse speeche and writing (2008)

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See detailEffect of climate change on flood risk along river Ourthe
Dewals, Benjamin ULg; Ernst, Julien ULg

Conference (2008, November 12)

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See detailEffect of climate change on flood risk along river Ourthe
Dewals, Benjamin ULg; Ernst, Julien ULg; Pirotton, Michel ULg

Conference (2008, November 12)

Detailed reference viewed: 14 (3 ULg)