Journal of hydraulic research, Vol. 46 N°5. Journal of hydraulic research - 2008
| Titre : | Journal of hydraulic research, Vol. 46 N°5. Journal of hydraulic research - 2008 |
| Type de document : | Bulletin |
| Paru le : | 08/11/2008 |
Dépouillements
Article : texte imprimé
D. Velasco, Auteur ;
A. Bateman, Auteur ;
V. Medina, Auteur
|
This paper suggests a simple new numerical scheme for calculating the vertical velocity profile, turbulent shear stress distribution, and canopy deflection for flow in vegetated channels. The scheme is derived from the simplified, steady Reynold[...]
Article : texte imprimé
Saeed Reza Khodashenas, Auteur ;
Kamal El Kadi Abderrezzak, Auteur ;
André Paquier, Auteur
|
Six methods for the computation of the boundary shear stress distribution, and the mean bed and wall shear stresses in prismatic open channel flows are compared against laboratory data. The comparisons indicate that the widely used Vertical Dept[...]
Article : texte imprimé
B. Ghorbani, Auteur ;
J. A. Kells, Auteur
|
The principal purpose of this research was to study the effect of a submerged vane as a countermeasure technique on local scour at a cylindrical pier. For this purpose, several heights of vane, angles of orientation, and flow depths were evaluat[...]
Article : texte imprimé
Huei-Tau Ouyang, Auteur ;
Jihn-Sung Lai, Auteur ;
Hsin Yu, Auteur
|
A new approach to analyze the interaction among a row of submerged vanes is described. Submerged vanes are small foil-like elements mounted vertically on the channel bed to modify the flow pattern and the sediment distribution within its cross s[...]
Article : texte imprimé
Manzoor A. Ahanger, Auteur ;
Girdhari L. Asawa, Auteur ;
Mohd A. Lone, Auteur
|
The tendency for sediment concentration to have different values at identical stream discharges of the rising and the falling stages of a flood hydrograph is termed as hysteresis effect. Herein experiments were carried out on a tilting flume usi[...]
Article : texte imprimé
Huang Jingmin, Auteur ;
Borthwick, Alistair G. L., Auteur ;
Richard L. Soulsby, Auteur
|
An understanding of fluvial processes is vital for river management systems. This paper describes a one-dimensional model of fluvial bed morphodynamics, with the flow hydrodynamics represented by the hyperbolic nonlinear shallow water equations [...]
Article : texte imprimé
Soares-Frazão, Sandra, Auteur ;
Yves Zech, Auteur
|
This study relates to sudden transient flow of the dam-break wave type in an idealised city in order to investigate the effects of flow depth and velocity on such a city. Particularly, the study aims at assessing the ability of a finite-volume n[...]
Article : texte imprimé
Guo Qingchao, Auteur ;
Hu Chunhong, Auteur ;
Koniyoshi Takeuchi, Auteur
|
The simulation of hyper-concentrated sediment transport is very important in managing rivers with high sediment concentrations. Based on the theory of non-equilibrium transport of non-uniform sediment, a 1-D mathematical model is developed to si[...]
Article : texte imprimé
M. R. Hadian, Auteur ;
A. R. Zarrati, Auteur
|
In the present study a numerical method is developed for simulating shallow free surface flows in complex geometries. A Multi-Block (MB) method is employed in conjunction with non-orthogonal curvilinear coordinate system. This technique gives th[...]
Article : texte imprimé
Ivo Pothof, Auteur
|
This paper discusses the existing approaches to unsteady friction and presents some new ideas on the modelling of unsteady friction in turbulent pipe flows. This paper aims to contribute to a physically-based unsteady friction model that capture[...]
Article : texte imprimé
Venturi flumes are of practical significance for flow measurement structures in open channels. The curvilinear flow in these structures has not yet received a systematic attention. As a result, the current engineering practice is based on the hy[...]
Article : texte imprimé
Manouchehr Heidarpour, Auteur ;
Jahanshir Mohammadzadeh Habili, Auteur ;
Amir Hamzeh Haghiabi, Auteur
|
The circular-crested weir is used for flow measurement and water level control in irrigation systems. It is also applied to flood and reservoir level control. In this study potential flow around the upper half of the circular cylinder is adapted[...]
Article : texte imprimé
William Hogarth, Auteur ;
Jean-Yves Parlange, Auteur ;
C. W. Rose, Auteur
|
Standard analytical and empirical results of hydraulic jumps are reanalyzed. The assumption that momentum but not energy is conserved across a jump is abandoned. The limiting case when energy dissipation is maximum is explicitly considered, whic[...]
Article : texte imprimé
Swamee, Prabhata K., Auteur ;
Sharma, Nayan, Auteur ;
Ambuj Dwivedi, Auteur
|
The applicability of Lacey’s equations is tested for the river Brahmaputra. It is found that the river follows the structure of Lacey’s regime equations. The perimeter and the area coefficients found in the modified regime equations are much hig[...]
Article : texte imprimé
Mehmet Unsal, Auteur ;
Ahmet Baylar, Auteur ;
Mehmet Tugal, Auteur
|
Dissolved oxygen is the amount of oxygen dissolved in water corresponding to an important water quality parameter in rivers, streams, and lakes. If the gate of a high-head outlet conduit is partly opened, a negative pressure draws the air throug[...]
Exemplaires(0)
| Disponibilité | ||||
|---|---|---|---|---|
| aucun exemplaire | ||||
