Journal of hydraulic research, Vol. 45 N°4. Journal of hydraulic research - 2007
| Titre : | Journal of hydraulic research, Vol. 45 N°4. Journal of hydraulic research - 2007 |
| Type de document : | Bulletin |
| Paru le : | 03/10/2007 |
Dépouillements
Article : texte imprimé
Baptist, M. J., Auteur ;
Babovic, V., Auteur ;
Rodriguez Uthurburu, J., Auteur
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The paper describes the process of induction of equations for the description of vegetation-induced roughness from several angles. Firstly, it describes two approaches for obtaining theoretically well-founded analytical expressions for vegetatio[...]
Article : texte imprimé
Liang Huang, Sui, Auteur ;
Hui Wan, Zhao, Auteur ;
Smith, Paul, Auteur
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On the basis of comprehensively reviewing existing mathematical models, a mathematical model describing heavy metal transport-transformation (dynamics) in its entity in fluvial rivers has been worked out by using basic principals of environmenta[...]
Article : texte imprimé
Yang, Shu-Qing, Auteur ;
Lee, Joong-Woo, Auteur
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The Reynolds shear stress distribution in non-uniform flows has been investigated. The theoretical results show that the wall-normal velocity causes the deviation of Reynolds shear stress from the standard linear distribution, i.e., but the sum [...]
Article : texte imprimé
Gupta, Umesh P., Auteur ;
Sharma, Nayan, Auteur
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Tapered submerged vanes are installed in Wapsipinicon river bend in the USA and outside a new water intake in Nepal. Taper angle is the angle made by leading edge of vane with horizontal in vertical plane. A tapered vane also induces something c[...]
Article : texte imprimé
Peiqing, L., Auteur ;
Aihua, L., Auteur
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The hydrodynamic pressures and its propagation within rock cracks must be taken into account to study the development of scour pool due to jet impact downstream of high dams. In this paper, the transmission mechanism of fluctuating pressure in c[...]
Article : texte imprimé
Yu, Guoliang, Auteur ;
Soon Keat Tan, Auteur
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An approach using flownet to calculate the boundary shear stress distribution along the wetted perimeter in a two dimensional flow is proposed. This approach is based on the assumption that the energy production balances the energy dissipation w[...]
Article : texte imprimé
Khullar, N. K., Auteur ;
Kothyari, U. C., Auteur ;
Ranga Raju, K. G., Auteur
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Results of an experimental study on the effects of concentration of wash load on the resistance to flow in an alluvial channel are presented. The experiments were carried out under different hydraulic conditions in a 30-m long, 0.204-m wide and [...]
Article : texte imprimé
Sanchez-Juny, M., Auteur ;
Dolz, J., Auteur ;
Bladé, E., Auteur
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This paper presents an analysis of the pressure field on the steps of a stepped spillway on an RCC dam. The fundamental component of this study is a series of pressure measurements obtained in the fully-developed zone of skimming flow regime alo[...]
Article : texte imprimé
Omid, M. H., Auteur ;
R. Narayanan, Auteur ;
Esmaeeli Varaki, M., Auteur
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In this study, the hydraulic jump formed in a gradually expanding stilling basin of trapezoidal cross section is investigated. The expansion of the basin is accomplished by increasing the bed width in the streamwise direction. The range of angle[...]
Article : texte imprimé
Zerihun, Yebegaeshet T., Auteur ;
Fenton, John D., Auteur
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Computational flow models that are developed based on the depth-averaged Saint–Venant equations cannot be used to simulate flow over short-and broad-crested trapezoidal profile weirs. In the derivation of the Saint–Venant equations, uniform velo[...]
Article : texte imprimé
Yazdandoost, F. Y., Auteur ;
Fazeli, M., Auteur ;
Bateni, S. M., Auteur
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The phenomenon of the hydraulic jump is so complex that despite considerable laboratory and prototype studies, estimation of its main characteristics in a generalized and accurate form is still difficult. The Artificial Neural Network (ANN) appr[...]
Article : texte imprimé
Hocevar, Marko, Auteur ;
Sirok, Brane, Auteur ;
Blagojevic, Bogdan, Auteur
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Experimental modeling of a cavitation vortex structure in a Francis turbine draft tube is presented. Pressure in the draft tube and images of vortex structure were acquired simultaneously for the experiment. Non-parametric radial basis neural ne[...]
Article : texte imprimé
Karney, Bryan W., Auteur ;
Simpson, Angus R., Auteur
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This study systematically explores the relatively neglected surge protection strategy of installing an in-line check valve at an intermediate point within a pipeline. The in-line check valve is selected to isolate part of the system from a high-[...]
Article : texte imprimé
Zhoo, J. G., Auteur ;
Shu, J.-J., Auteur ;
Stansby, P. K., Auteur
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A theoretical study of the hydraulic jump in a Bingham fluid is presented in this paper. Based on the approximation for lubrication theory, the formulae for conjugate depths, sequent bottom shear stress and critical depth are established. Due to[...]
Article : texte imprimé
One of the few fundamental constants in fluid mechanics is von Karman’s constant governing many turbulent flows. Using an energy argument and mathematical symmetry it is argued here that von Karman’s constant is K 414 (with derivable corrections[...]
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