Journal of hydraulic research, Vol. 46 n°3. Journal of hydraulic research - 2008
| Titre : | Journal of hydraulic research, Vol. 46 n°3. Journal of hydraulic research - 2008 |
| Type de document : | Bulletin |
| Paru le : | 14/07/2008 |
Dépouillements
Article : texte imprimé
Makoto Higashino, Auteur ;
Stefan, Heinz G., Auteur
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It is well-known that sediment/water interaction affects water quality in natural water bodies in a variety of ways. Diffusional mass transfer, across a sediment/water interface can contribute significantly to the mass balances of dissolved subs[...]
Article : texte imprimé
Masamitsu Arita, Auteur ;
Masanori Nakai, Auteur
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As is well-known, many researchers treated the plunging conditions of the two-dimensional negative buoyant surface jets released on a sloping bottom. However, they suggested a wide variety of the plunging conditions, which are quite different fr[...]
Article : texte imprimé
Jie Cui, Auteur ;
Vincent S. Neary, Auteur
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Fully developed turbulent flows with a submerged vegetation are investigated using Large Eddy Simulation (LES), with a focus on understanding the role of the coherent structures on the momentum transfer across the water-plant interface. The LES [...]
Article : texte imprimé
Alfonso Pujol, Auteur
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This contribution proposes additional sediment sampling beyond what is customary done in practice, with the goal of enhancing the estimation of sediment transport rates from data collected in the field. The analysis is restricted to large, low-l[...]
Article : texte imprimé
Robert R. Holmes, Auteur ;
Marcelo H. Garcia, Auteur
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An experimental field study of flows over bedforms was conducted on the Missouri River near St. Charles, Missouri. Detailed velocity data were collected under two different flow conditions along bedforms in this sand-bed river. The large river-s[...]
Article : texte imprimé
Pagliara, Stefano, Auteur ;
Michele Palermo, Auteur
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Block ramps or rock chutes are structures characterized by large bed slopes. They are increasingly used as river bed stabilization measures because of their particular capacity to sustain the river morphology and biological continuity. The scour[...]
Article : texte imprimé
Nurhan Adil Ozturk, Auteur ;
Azize Akkoca, Auteur ;
Besir Sahin, Auteur
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The main purpose of this study is to investigate the flow structure up- and downstream of a circular cylinder mounted on a flat surface in the boundary layer region using a Particle Image Velocimetry (PIV) technique for Reynolds numbers ranging [...]
Article : texte imprimé
Jie Zeng, Auteur ;
George Constantinescu, Auteur ;
Weber, Larry, Auteur
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The validation and application of a model to solve for the flow, the sediment transport, and bed morphology changes in open channels is discussed. The non-hydrostatic model solves the three-dimensional (3D) incompressible, Reynolds-Averaged Navi[...]
Article : texte imprimé
Bergant, Anton, Auteur ;
Arris S. Tijsseling, Auteur ;
Vitkovsky, John P., Auteur
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This two-part paper investigates key parameters that may affect the pressurewaveform predicted by the classical theory ofwater-hammer. Shortcomings in the prediction of pressure wave attenuation, shape and timing originate from violation of assu[...]
Article : texte imprimé
Bergant, Anton, Auteur ;
Arris S. Tijsseling, Auteur ;
Vitkovsky, John P., Auteur
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This two-part paper investigates parameters that may significantly affect water-hammer wave attenuation, shape and timing. Possible sources that may affect the waveform predicted by classical water-hammer theory include unsteady friction, cavita[...]
Article : texte imprimé
A new method of leak detection in long pipelines is proposed This method is a computer-based real-time technique to detect and locate leaks in pipelines conveying liquids. The new method utilizes a deterministic trial and error scheme to minimiz[...]
Article : texte imprimé
Anastasios I. Stamou, Auteur ;
Demetrios G. Chapsas, Auteur ;
George C. Christodoulou, Auteur
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A 3-D CFD model based on the Volume of Fluid (VOF) method to calculate the free surface was used to study supercritical flow in gradual open channel expansions. The model was first applied to a modified Rouse expansion, for which extensive exper[...]
Article : texte imprimé
Marti Sanchez-Juny, Auteur ;
Ernest Bladé, Auteur ;
Josep Dolz, Auteur
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The pressure profiles on the horizontal and vertical step faces of a stepped spillway in the fully developed skimming flow region were measured. These observations allow to provide generalized equations that enable designers to analyze the amoun[...]
Article : texte imprimé
Serhat Kucukali, Auteur ;
Sevket Cokgor, Auteur
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In this experimental study, the boulder-flow interaction associated with the self-aeration process was investigated in a 0.50 m wide flume. Experiments were performed with three different boulder arrangements and four different relative boulder [...]
Article : texte imprimé
Steven C. Wilhelms, Auteur ;
John S. Gulliver, Auteur
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Article : texte imprimé
Lin, C., Auteur ;
Hwung, W.-Y., Auteur ;
Hseih, S.-C., Auteur
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