Journal of hydraulic research, Vol. 45 N°3. Journal of hydraulic research - 2007
| Titre : | Journal of hydraulic research, Vol. 45 N°3. Journal of hydraulic research - 2007 |
| Type de document : | Bulletin |
| Paru le : | 15/06/2007 |
Dépouillements
Article : texte imprimé
Chanson, Hubert, Auteur
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For centuries, hydraulic engineers were at the forefront of science. The last forty years marked a change of perception in our society with a focus on environmental sustainability and management, particularly in developed countries. Herein, the [...]
Article : texte imprimé
Rameshwaran, P., Auteur ;
Shiono, K., Auteur
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The paper presents a quasi two-dimensional (2D) model calculating depth-averaged velocity and bed shear stress in a straight compound channel with a vegetated floodplain. The model numerically solves the depth-averaged Navier–Stokes equation for[...]
Article : texte imprimé
Savary, Céline, Auteur ;
Yves Zech, Auteur
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The one-dimensional numerical model presented in the present paper divides the flow in two fully coupled layers, a water layer and a water-sediment transport layer. Initially, this model was used to depict dam-break flows, which do not require a[...]
Article : texte imprimé
Kumar Dey, Ashis, Auteur ;
Kitamura, Tadanori, Auteur ;
Tsujimoto, Tetsuro, Auteur
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Flume experiments were conducted to characterize the headcut erosion process on low bed slope landforms such as floodplain. Two different series of experiments were performed to investigate the headcut erosion and migration phenomenon both in ho[...]
Article : texte imprimé
Five extensively validated sediment transport formulae and three methods of specifying loose bed roughness were implemented into CCHE2D model of 2002 version. The CCHE2D model is a depth integrated two-dimensional hydrodynamic and non-uniform se[...]
Article : texte imprimé
Arindam Sarkar, Auteur ;
Subhasish Dey, Auteur
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Experiments were conducted to investigate the effect of upward seepage on the characteristics of scour hole due to horizontal submerged jets and the resulting flow field within the scour hole. In the experiments, the submerged jets had a range o[...]
Article : texte imprimé
Khan, Ijaz M., Auteur ;
Simons, Richard R., Auteur ;
Grass, Anthony J., Auteur
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In this paper, the vertical diffusion was measured from line source injector under neutral boundary condition over rib-roughened wall in a water channel. The variation in gap distance between the rib-roughened wall characterized skimming flow (r[...]
Article : texte imprimé
Deshpande, N., Auteur ;
Mazurek, K. A., Auteur ;
Balachandar, R., Auteur
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Experiments were carried out to study the scour of cohesionless soils by submerged plane turbulent wall jets. The Reynolds number based on the jet exit conditions was 32,500 and the densimetric Froude number was 6.2. Submergence, defined as the [...]
Article : texte imprimé
Monino, A., Auteur ;
Losada, M. A., Auteur ;
Riera, J., Auteur
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This paper presents a study on the influence of the upstream quadrant of the spillway crest section, designed with equal geometry as that of the lower surface profile of a free flow over a sharp crested weir, on the discharge characteristics of [...]
Article : texte imprimé
Picek, Tomas, Auteur ;
Havlik, Ales, Auteur ;
Mattas, Daniel, Auteur ;
Mares, Karel, Auteur
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During a flood on a creek or a small river, a bridge opening may run completely full or even the entire bridge may be submerged by the flow. The paper deals with a calculation of flow through a partially- or entirely submerged bridge deck of a r[...]
Article : texte imprimé
Pagliara, Stefano, Auteur ;
Chiavaccini, Pietro, Auteur
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The paper shows the results of stability tests of block ramps. Block ramps of rock chutes are short and steep longitudinal structures where the bed of the channel is armored with rocks. In order to ensure the ramp functionality it is important [...]
Article : texte imprimé
Holland, Paul R., Auteur ;
Daly, Steven F., Auteur ;
Feltham, Daniel L., Auteur
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The growth (melt) rate of frazil ice is governed by heat transfer away from (towards) the ice crystal, which can be represented by the Nusselt number. We discuss choices for the Nusselt number and turbulent length scale appropriate for frazil ic[...]
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