Journal of hydraulic research, Vol. 45 N°5. Journal of hydraulic research - 2007
| Titre : | Journal of hydraulic research, Vol. 45 N°5. Journal of hydraulic research - 2007 |
| Type de document : | Bulletin |
| Paru le : | 16/12/2007 |
Dépouillements
Article : texte imprimé
Mossa, Michele, Auteur
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In this paper, the historic floods in the city of Bari, Italy, are analyzed and compared to the recent food of October 2005. The objective is to point out the role of anthropogenic action and poor planning in the amplification of territory risks[...]
Article : texte imprimé
Nguyen, V. TH., Auteur ;
Nestmann, F., Auteur ;
Scheuerlein, H., Auteur
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In this paper, a three-dimensional (3D) numerical model for the computation of turbulent meandering flow is developed. A finite element calculation procedure combined with the two-equation k-ε and mixing length model are applied to the problem o[...]
Article : texte imprimé
Three-dimensional numerical simulation of solute transport in a meandering self-formed river channel
Wilson, C.A.M.E., Auteur ;
Boxall, J. B., Auteur ;
Guymer, I., Auteur
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A three-dimensional numerical model with standard k-? turbulence closure has been applied to model the transport and mixing of solute in a large-scale laboratory channel. The channel is meandering with self-formed cross-sectional shape. Simulati[...]
Article : texte imprimé
Bombardelli, F. A., Auteur ;
Buscaglia, G. C., Auteur ;
Rehmann, C. R., Auteur
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In this paper, we focus on bubble plumes aimed at providing oxygen to, and at mixing unstratified water bodies. First, we discuss scaling relations obtained from a three-dimensional (3D) theoretical model for multi-component fluids. An expressio[...]
Article : texte imprimé
Crespo, A. J. C., Auteur ;
Dalrymple, R. A., Auteur ;
Gomez-Gesteira, M., Auteur
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The interaction between a large wave and a coastal structure is studied with a 3D SPH model. The role of protecting barriers (dikes and seawalls) to mitigate the force and moment exerted on the structure is analyzed in terms of the dike height a[...]
Article : texte imprimé
Lee, Pedro J., Auteur ;
Martin F. Lambert, Auteur ;
Vitkovsky, John P., Auteur
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Current transient-based leak detection methods for pipeline systems often rely on a good understanding of the system—including unsteady friction, pipe roughness, precise geometry and micro considerations such as minor offtakes—in the absence of [...]
Article : texte imprimé
Talmon, A. M., Auteur ;
Bakker-Vos, R., Auteur ;
Aanen, L., Auteur
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High concentration solid-liquid mixtures that are conveyed by pipeline have been found to develop large amplitude concentration fluctuations. A closed loop laboratory circuit is used to investigate the mechanism of self-excitation. According to [...]
Article : texte imprimé
Smart, G. M., Auteur ;
Habersak, H. M., Auteur
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Near-bed, sub-bed and uplift pressure fluctuations measured in NewZealand gravel bed rivers were found to have near Gaussian frequency distributions. At measurement sites the standard deviation of near-bed pressure fluctuations was approximately[...]
Article : texte imprimé
Deng, Zhiqun, Auteur ;
Richmond, Marshall C., Auteur ;
Guensch, Gregory R., Auteur
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At The Dalles Dam on the Columbia River, fish are believed to sustain injury from exposure to turbulence and from collisions with baffle blocks and end sills in the stilling basin at high spillway discharges. Due to taking velocity measurements [...]
Article : texte imprimé
Murzyn, F., Auteur ;
Mouazé, D., Auteur ;
Chaplin, J. R., Auteur
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Following previous experimental works (Mouaze et al., J. Fulids Engng. ASME 127(6) (2005) 1191–1193; Murzyn et al., Int. J. Multiphase Flow, 31(1), (2005) 141–154) on gas fraction characterisation in hydraulic jumps, the present paper aims to in[...]
Article : texte imprimé
Ramamurthy, A. S., Auteur ;
Qu, Junying, Auteur
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The three-dimensional two-equation k-ω turbulence model is applied to obtain the characteristics of flow past a rectangular floor slot located in a rectangular closed conduit. The predictions of the numerical simulation are validated using exist[...]
Article : texte imprimé
Lu, Yan, Auteur ;
Yee-Meng Chiew, Auteur
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This experimental study investigates how suction affects turbulence flow over an immobile, two-dimensional triangular dune. A Laser Doppler Anemometer is used to measure the streamwise and vertical components of velocity over one dune length for[...]
Article : texte imprimé
Xl Yang, James, Auteur ;
Cederström, Malte, Auteur
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In Sweden, many dams are to be refurbished in light of the new dam-safety guidelines that lead to higher design floods. To modify the spillway of a dam is often one of the alternatives proposed to increase its discharge capacity. Spillway rebuil[...]
Article : texte imprimé
Vertical banks with changes in alignment are called protruding walls. Local scour at the wall nose was investigated in almost 40 clear-water tests lasting up to 2 weeks. The main results were expressions for local scour development as a function[...]
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