Journal of hydraulic research, Vol. 44 N°1. Journal of Hydraulic Research - 2006
| Titre : | Journal of hydraulic research, Vol. 44 N°1. Journal of Hydraulic Research - 2006 |
| Type de document : | Bulletin |
| Paru le : | 12/12/2006 |
Dépouillements
Article : texte imprimé
Blanckaert, K., Auteur ;
Lemmin, U., Auteur
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Although three-receiver acoustic Doppler velocimeters (ADV) can accurately measure the three-dimensional mean flowfield, their turbulence measurements suffer from parasitical noise contributions. By adding a fourth receiver and optimizing the tr[...]
Article : texte imprimé
Wormleaton, Peter R., Auteur ;
Ewunetu, Manaye, Auteur
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In this paper, data from a series of experiments on overbank flow in mobile bed meandering channels, carried out on the UK Flood Channel Facility (FCF) at HRWallingford, are compared with computational results using a standard three dimensional [...]
Article : texte imprimé
Subhasish Dey, Auteur ;
Barbhuiya, Abdul Karim, Auteur
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Experiment was conducted in a laboratory flume to measure the 3D turbulent flow field by an acoustic Doppler velocimeter in a scour hole at a 45o wing-wall abutment under a clear water regime. The profiles of time-averaged velocity components, t[...]
Article : texte imprimé
Chanson, H., Auteur
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Modern stepped spillways are typically designed for large discharge capacities corresponding to a skimming flow regime for which flow resistance is predominantly form drag. The writer demonstrates that the inflow conditions have some effect on t[...]
Article : texte imprimé
Azmathullah, H. M. D., Auteur ;
Deo, M. C., Auteur ;
Deolalikar, P. B.
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Information on the depth of the scour hole formed downstream of a ski-jump bucket type of energy dissipator is necessary in determining the safety of dams and adjoining structures. Traditional formulae available to predict scour depth suffer fro[...]
Article : texte imprimé
Lukerchenko, Nikolai, Auteur ;
Vlasak, Pavel, Auteur ;
Chara, Zdenek, Auteur
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This paper deals with bed load transport and the movement of rotating spherical particles in an open channel flow is considered. A numerical model for the random process of the particle impact and rebound from the channel bed is developed. Stoch[...]
Article : texte imprimé
Pengzhi Lin, Auteur ;
Ux, Weilin, Auteur
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A computer model has been developed to simulate general turbulent free surface flows. The model solves Reynolds equations for turbulent flows and employs the volume-of-fluid method to track free surfaces. Being the extension of the earlier works[...]
Article : texte imprimé
Tanaka, Hitoshi, Auteur ;
Samad, Mustafa Ataus, Auteur
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A method has been proposed to compute instantaneous turbulent bottom shear stress from the variation in free stream velocity under irregular waves for hydraulically smooth plane bed condition. Instantaneous free stream velocity and a modified re[...]
Article : texte imprimé
Sanchez, Martin, Auteur ;
Chevalier, Christophe, Auteur
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This paper describes an original method to separate two co-existing linear waves in a flume. It is based on the study at a fixed point of the water surface level h , and the slope of the water surface ah/ax. In this method a complex function con[...]
Article : texte imprimé
Chua, Lloyd H. C., Auteur ;
Shuy, Eng Ban, Auteur
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Measurements of the horizontal velocity component were made for a horizontal wall-jet emanating from a submerged sluice gate forming one side of a large flow compartment. The existence of large-scale vortex structures was quantified by spectral [...]
Article : texte imprimé
Fernàndez, Joaquin, Auteur ;
Blanco, Eduardo, Auteur
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This paper describes an old ironwork placed in the Spanish village of Teixois-Taramundi (Asturias). The air supply and the hydraulic wheel are studied. The minimum area in the water trumpet for an adequate air flow is calculated, along with the [...]
Article : texte imprimé
Kolsek, Tomaz, Auteur ;
Duhovnik, Joze, Auteur ;
Bergant, Anton, Auteur
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The paper describes a novel method for prediction of water turbine characteristics during transient operating regimes. It is based on numerical flow simulation with finite volume method. The whole axial turbine flow-passage is considered in the [...]
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