Journal of hydraulic research, Vol. 47 N° 6. Journal of hydraulic research - 2009
| Titre : | Journal of hydraulic research, Vol. 47 N° 6. Journal of hydraulic research - 2009 |
| Type de document : | Bulletin |
| Paru le : | 11/02/2010 |
Dépouillements
Article : texte imprimé
Umesh C. Kothyari, Auteur ;
Kenjirou Hayashi, Auteur ;
Haruyuki Hashimoto, Auteur
|
Results of an experimental study on the drag force measurement involving a single stem kept in a channel flow stem array are presented. The data collected herein and those from literature indicate that the stem drag coefficient logarithmically i[...]
Article : texte imprimé
Umesh C. Kothyari, Auteur ;
Haruyuki Hashimoto, Auteur ;
Kenjirou Hayashi, Auteur
|
Results of an experimental study on sediment transport by channel flows with tall rigid stems are presented. The experiments were conducted for various stem areal densities, channel slopes and sediment sizes with uniformly distributed unsubmerge[...]
Article : texte imprimé
Azin Amini, Auteur ;
Boillat, Jean-Louis, Auteur ;
Anton J. Schleiss, Auteur
|
To simulate the retaining capacity of an oil barrier in an uniform flow field, experiments were carried out in a laboratory flume at Ecole Polytechnique Fédérale de Lausanne (EPFL), Laboratory of Hydraulic Constructions (LCH) by using Light Expa[...]
Article : texte imprimé
Bahram Rezaei, Auteur ;
Donald W. Knight, Auteur
|
The Shiono and Knight Method (SKM) is known as a capable tool to model flow in prismatic compound channels. This research explores whether SKM can be used to predict depth-averaged velocity and boundary shear stress in compound channels with non[...]
Article : texte imprimé
Muhammad A. Faheem Sadeque, Auteur ;
Nallamuthu Rajaratnam, Auteur ;
Mark R. Loewen, Auteur
|
Flow patterns in the shallow turbulent near-wakes behind bed-mounted cylinders are investigated on smooth and rough beds. A wall wake analysis revealed that the flows in the region away from the bed are similar and well described by the plane wa[...]
Article : texte imprimé
Oscar Castro-Orgaz, Auteur ;
Willi H. Hager, Auteur
|
The dynamics of free surface flow is characterised by the so-called Froude number F, whose value F = 1 separates subcritical (F < 1) and supercritical (F > 1) flows. The transition from F < 1 to F > 1 is smooth and continuous, as observed in[...]
Article : texte imprimé
Hossein Azinfar, Auteur ;
James A. Kells, Auteur
|
A method for quantifying the flow resistance exerted due to a single spur dike located in an open channel is presented. The work was carried out in a rigid bed flume, with the model spur dike being simulated using various sizes of a rectangular [...]
Article : texte imprimé
Zylin Hua, Auteur ;
Linghang Xing, Auteur ;
Kejian Chu, Auteur
|
Accuracy of convective flux approximation is important for numerical computation of incompressible flow on unstructured grids. The Quasi-QUICK scheme by Davidson is proposed to improve the accuracy of convective flux approximation. The numerical[...]
Article : texte imprimé
Fabian A. Bombardelli, Auteur ;
Mariano I. Cantero, Auteur ;
Marcelo H. Garcia, Auteur
|
Issues associated with the adequate representation of flow instabilities of saline, discontinuous density currents in two and three dimensions are discussed. First, simulations of the experiments by Alahyari and Longmire (1996) developed with an[...]
Article : texte imprimé
Mehmet Salih Kirkgoz, Auteur ;
Mevlut Sami Akoz, Auteur ;
Ahmet Alper Oner, Auteur
|
The simulation performance of two-dimensional flow over a round-crested chute spillway is examined using the finite element method along with the standard k-ε and the standard k-ω turbulence models. The volume of fluid method is used to determin[...]
Article : texte imprimé
Taka-Aki Okamoto, Auteur ;
Iehisa Nezu, Auteur
|
Aquatic plants in natural rivers are essentially important components of ecosystems. In vegetated canopy open-channel flow, velocity profiles are changed largely in the vertical direction resulting in the Kelvin-Helmholtz instability. Consequent[...]
Article : texte imprimé
Guinot, Vincent, Auteur ;
Bernard Cappelaere, Auteur ;
Carole Delenne, Auteur
|
Solving the Shallow-Water-Sensitivity Equations for discontinuous flows involves the discretization of a Dirac source term accounting for discontinuities. Failing to account for this source term usually results in solution instability, with empi[...]
Article : texte imprimé
Hossein Afzalimehr, Auteur ;
Sara Bagheri, Auteur
|
Sharp-crested weirs are used in hydraulic structures for accurate discharge measurement. Using a plane vertical plate perpendicular to the flowdirection and applying the theory of complex variables, an equation is developed for estimating the di[...]
Exemplaires(0)
| Disponibilité | ||||
|---|---|---|---|---|
| aucun exemplaire | ||||
