Journal of hydraulic research, Vol. 50 N° 3. Journal of hydraulic research - Mai/Juin 2012
| Titre : | Journal of hydraulic research, Vol. 50 N° 3. Journal of hydraulic research - Mai/Juin 2012 |
| Type de document : | Bulletin |
| Paru le : | 12/09/2012 |
Dépouillements
Article : texte imprimé
The Journal of Hydraulic Research (JHR) reaches in 2012 the 50th publication year, so that an adequate look back is appropriate. This paper describes the foundations of both the International Association of Hydro-environment Engineering and Rese[...]
Article : texte imprimé
This paper highlights some recent trends in vegetation hydrodynamics, focusing on conditions within channels and spanning spatial scales from individual blades, to canopies or vegetation patches, to the channel reach. At the blade scale, the bou[...]
Article : texte imprimé
Oscar Castro-Orgaz, Auteur ;
Willi H. Hager, Auteur
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Turbulent discontinuous open-channel flow appears in practice due to separation zones. The current practice overlooks the separation bubble by neglecting its velocity and by assuming static pressure on the active main stream. Based on the pionee[...]
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Pagliara, Stefano, Auteur ;
Michele Palermo, Auteur ;
Dipankar Roy, Auteur
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The scour process due to plunging jets has received considerable attention in the past few decades. This work analyses the effect of vertical jets crossing at various angles. Different scour morphologies created under various hydraulic and geome[...]
Article : texte imprimé
Joshua D. Mortensen, Auteur ;
Steven L. Barfuss, Auteur ;
Blake P. Tullis, Auteur
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In vented closed conduit conveyance systems, air entrained through hydraulic jumps can be problematic for system operation. While various factors influencing air entrainment have been reported in the literature, no specific attention has been pa[...]
Article : texte imprimé
Ji-In Yoon, Auteur ;
Jaeyong Sung, Auteur ;
Myeong Ho Lee, Auteur
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Velocity distributions and friction coefficients in a circular open channel have been investigated experimentally. To measure three-dimensional velocity components, a stereoscopic particle image velocimetry system was used. Based on the measured[...]
Article : texte imprimé
François Kerger, Auteur ;
Pierre Archambeau, Auteur ;
Benjamin J. Dewals, Auteur
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Mixed flows characterized by a simultaneous occurrence of free surface and pressurized flows are often encountered in hydraulic engineering. Numerous researches have been dedicated to unify the mathematical description of both flows. Herein, sho[...]
Article : texte imprimé
Leslie Hopkinson, Auteur ;
Theresa Wynn-Thompson, Auteur
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In tidal environments, the boundary shear stress (BSS) is directly proportional to the turbulent kinetic energy, with a reported proportionality coefficient of 0.19. This coefficient was calculated using velocity time series to determine Reynold[...]
Article : texte imprimé
Antoine Joly, Auteur ;
Violeau, Damien, Auteur ;
Frederic Moulin, Auteur
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The transport of particles in turbulent flows is a common problem in hydraulic engineering. In this paper, the focus is set on a numerical model used to simulate the transport of small bodies (debris, algae, etc.) along a coastline. In this prob[...]
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Mario Oertel, Auteur ;
Jan Mönkemöller, Auteur ;
Andreas Schlenkhoff, Auteur
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Surfing is one of the most popular water sports. A number of regional coastal hotspots have naturally breaking surf waves, but wave heights and breaking processes depend on various boundary conditions like seabed geometry, beach formation and sw[...]
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Michael Gebhardt, Auteur ;
Udo Pfrommer, Auteur ;
Fabian Belzner, Auteur
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Compared with traditional weirs, Jambor weirs have the advantage that they reduce afflux due to their hydraulically-optimized shape. Hence, for identical discharge capacity, the height of the gate and thus the cost are reduced significantly. Alt[...]
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