Journal of hydraulic research, Vol. 49 N° 6. Journal of hydraulic research - Novembre/Décembre 2011
| Titre : | Journal of hydraulic research, Vol. 49 N° 6. Journal of hydraulic research - Novembre/Décembre 2011 |
| Type de document : | Bulletin |
| Paru le : | 16/01/2012 |
Dépouillements
Article : texte imprimé
Caiwen Shu, Auteur ;
Junqiang Xia, Auteur ;
Roger A. Falconer, Auteur
|
Vehicles parking in urban areas can often cause various hazards to people and buildings when they are swept away by flash floods. Therefore, it is necessary to investigate the appropriate criteria of vehicle stability in floodwaters. Different f[...]
Article : texte imprimé
Habib Ahmari, Auteur ;
Ana Maria Ferreira Da Silva, Auteur
|
The existence region plan of alternate bars, multiple bars, meandering and braiding, introduced by da Silva in 1991 and presented in its most recent form by Yalin and da Silva in the 2001 IAHR monograph Fluvial Processes, is updated and revised.[...]
Article : texte imprimé
Joongu Kang, Auteur ;
Hongkoo Yeo, Auteur ;
Sungjung Kim, Auteur
|
The results of an experimental study on the flow characteristics around a groin structure of various geometries and permeabilities are presented. The impermeable rectangular, the permeable pile, and the triangular-shaped groins are considered. T[...]
Article : texte imprimé
The turbulent flow structures around an isolated spur dike located at three different approach flow angles are investigated. Detached eddy simulation is used at a channel Reynolds number of 45,000. Experimental velocity measurements were also co[...]
Article : texte imprimé
The current design of bridge foundations based on equilibrium scour depths is much larger than the real maximum scour depth since peak flood periods are often too short to reach equilibrium conditions. Based on a tested hypothesis on the time ra[...]
Article : texte imprimé
Pooyan Asadollahi, Auteur ;
Tonon, Fulvio, Auteur ;
Matteo P.E.A. Federspiel, Auteur
|
Block Stability in 3 Dimensions (BS3D) is an incremental-iterative algorithm and code to analyse general failure modes of rock blocks subjected to generic forces, including non-conservative forces such as water pressure. This algorithm is used t[...]
Article : texte imprimé
Bhaskar Ramesh, Auteur ;
Umesh C. Kothyari, Auteur ;
Krishnan Murugesan, Auteur
|
The motion of sediment particles over a transitionally-rough bed is studied experimentally using a real-time high-speed imaging system. Vertical distributions of the instantaneous flow velocities were measured using acoustic Doppler velocimetry.[...]
Article : texte imprimé
Chen, Li, Auteur ;
Stone, Mark C., Auteur ;
Kumud Acharya, Auteur
|
Vegetation plays an important role in stream processes and management efforts. However, the description of mechanical behaviours of vegetation–fluid interaction requires an improved understanding of the underlying physics and of the methods used[...]
Article : texte imprimé
Oscar Castro-Orgaz, Auteur ;
Willi H. Hager, Auteur
|
Water flow over short hydraulic transitions is usually modelled by the irrotational flow theory, for which the energy head remains constant over the entire flow domain. Velocity and pressure distributions are then obtained based on the stream an[...]
Article : texte imprimé
Gustavo Marini, Auteur ;
Giuseppe De Martino, Auteur ;
Nicola Fontana, Auteur
|
In this paper, considering time-averaged velocity as a random variable, two-dimensional (2D) velocity distributions in open-channel flow have been derived based on the Shannon entropy concept and the principle of maximum entropy. The velocity di[...]
Article : texte imprimé
Arthur Simanjuntak, Auteur ;
Imberger, Jörg, Auteur ;
Keisuke Nakayama, Auteur
|
Tone River is a shallow, tidal estuary with a controllable upstream freshwater discharge via a barrage. The mixing characteristics in the benthic and interfacial regions of the Tone River estuary were investigated during a time window of maximum[...]
Article : texte imprimé
Deyou Liu, Auteur ;
Ling Zhou, Auteur ;
Bryan Karney, Auteur
|
Pressure transients in a rapidly-filling pipe with an entrapped air pocket are investigated analytically. A rigid-plug elastic-water model is developed by applying elastic-water hammer to the majority of the water columns while applying rigid-wa[...]
Article : texte imprimé
Giuseppe Del Giudice, Auteur ;
Corrado Gisonni, Auteur
|
This work describes the main hydraulic features of vortex dropshafts along with some examples of their mis-designs and consequent malfunction. Laboratory experiments were conducted to test the hydraulic performance of subcritical vortex intakes [...]
Article : texte imprimé
Hojat Karamia, Auteur ;
Abdollah Ardeshir, Auteur ;
Kourosh Behzadian, Auteur
|
To alleviate the scour depth around a series of existing spur dikes (SDs), a protective SD located upstream of the first was experimentally investigated. To determine the optimal design parameters, various values, lengths, angles and the spacing[...]
Article : texte imprimé
Mohammad Sedghi-Asl, Auteur ;
Hassan Rahimi, Auteur
|
In this paper, the concept of Darcy–Weisbach's friction loss in pipe flows is employed and combined with Manning's widely used formula in open-channel flow problems to obtain a new relation for flow in porous rockfill media. A new formula to det[...]
Article : texte imprimé
Swamee, Prabhata K., Auteur ;
Chandra Shekhar P. Ojha, Auteur ;
Talib Mansoor, Auteur
|
Skew weirs are used for reducing afflux while passing a certain discharge. Herein, the discharge characteristics of a sharp-crested skew weir are explored. The concept of elementary discharge coefficient is utilized for predicting the discharge.[...]
Exemplaires(0)
| Disponibilité | ||||
|---|---|---|---|---|
| aucun exemplaire | ||||
