Journal of hydraulic research, Vol. 46 N°2. Journal of hydraulic research - 2008
| Titre : | Journal of hydraulic research, Vol. 46 N°2. Journal of hydraulic research - 2008 |
| Type de document : | Bulletin |
| Paru le : | 21/05/2008 |
Dépouillements
Article : texte imprimé
Evaluation of high-velocity plunging jet-issuing characteristics as a basis for plunge pool analysis
P. F. A. Manso, Auteur ;
E. F. R. Bollaert, Auteur ;
A. J. Schleiss, Auteur
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This paper presents experimental work on the characteristics of jets issuing from water-releasing structures. Systematic experimental tests have been performed at near-prototype velocities of up to 30 m/s using a cylindrical jet nozzle. Dynamic [...]
Article : texte imprimé
Partha Sarathi, Auteur ;
M. A. A. Faruque, Auteur ;
Ram Balachandar, Auteur
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In this paper, an effort is made to better understand the scour caused by submerged square jets in a cohesionless sand bed. The variables of interest are the densimetric Froude number, the tailwater depth and sediment grain size. Experiments wer[...]
Article : texte imprimé
Zech, Y., Auteur ;
Soares-Frazao, S., Auteur ;
Spinewine, B., Auteur
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The present paper aims to present the issues and the scope of work conducted under the framework of the European Research Project IMPACT, in the field of dam-break induced geomorphic flows, at the Université Catholique de Louvain, Belgium. Two c[...]
Article : texte imprimé
Hervé Morvan, Auteur ;
Donald Knight, Auteur ;
Nigel Wright, Auteur
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This paper gives an overview of the meaning of the term “roughness” in the field of fluvial hydraulics, and how it is often formulated as a “resistance to flow” term in 1D, 2D and 3D numerical models. It looks at how roughness is traditionally c[...]
Article : texte imprimé
A. Khosronejad, Auteur ;
C. D. Rennie, Auteur ;
A. A. Salehi Neyshabouri, Auteur
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For the computation of flow field and bed evolution in a water reservoir during the flushing process a fully three-dimensional hydrodynamic model, using a finite volume method to solve the Reynolds averaged Navier–Stokes equations, has been deve[...]
Article : texte imprimé
Bijan Darhahi, Auteur
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The study focuses on the sedimentation problems found in the lower reach of the River Klarälven, where the river bifurcates into a west and an east channels at the city of Karlstad. During a period of thirty years, the sediment transport capacit[...]
Article : texte imprimé
Mahdi Moradi-Jalal, Auteur ;
Karney, Bryan W., Auteur
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For many water authorities worldwide, one of the greatest potential areas for energy savings is in pump selection and in the related effective scheduling of daily pump operations. The optimal control and operation of an irrigation pumping statio[...]
Article : texte imprimé
Rajkumar V. Raikar, Auteur ;
Subhasish Dey, Auteur
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This paper presents an experimental investigation on the characteristics of the development of turbulent horseshoe vortex flow in an evolving (intermediate stages and equilibrium) scour hole at square cylinder measured by an acoustic Doppler vel[...]
Article : texte imprimé
Martin-Vide, J. P., Auteur ;
P. J. M. Moreta, Auteur ;
S. Lopez-Querol, Auteur
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This paper shows that common open channel flow one-dimensional (1-D) numerical models behave poorly in terms of flow distribution across a section in a naturalized meandering channel with vegetated floodplains. We compared numerical models with [...]
Article : texte imprimé
Swamee, Prabhata K., Auteur ;
Nimisha Swamee, Auteur
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Closed noncircular sections are frequently employed for sewers carrying large discharges. The shapes of these sections are defined by a set of equations valid in a given range of depths. Thus, the flow parameters like average flow velocity, disc[...]
Article : texte imprimé
M. B. Bishwakarma, Auteur ;
H. Stole, Auteur
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Sediments have posed great challenges in the operation of Run-of-River (RoR) hydropower plants mainly built on sediment-laden rivers. The relationship between characteristics of sediments and the features of a power plant is not well known. The [...]
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