Journal of hydraulic research, Vol. 49 N° 1. Journal of hydraulic research - Janvier/Fevrier 2011
| Titre : | Journal of hydraulic research, Vol. 49 N° 1. Journal of hydraulic research - Janvier/Fevrier 2011 |
| Type de document : | Bulletin |
| Paru le : | 21/04/2011 |
Dépouillements
Article : texte imprimé
Ilias G. Papakonstantis, Auteur ;
George C. Christodoulou, Auteur ;
Panos N. Papanicolaou, Auteur
|
Experimental results on inclined turbulent round jets with negative buoyancy discharging in a calm homogeneous fluid are presented. Six different discharge angles from 45° to 90° to the horizontal are studied, and the jet evolution is recorded b[...]
Article : texte imprimé
Ilias G. Papakonstantis, Auteur ;
George C. Christodoulou, Auteur ;
Panos N. Papanicolaou, Auteur
|
Experiments on concentration measurements in round turbulent negatively buoyant jets discharging into a calm homogeneous fluid at three different angles are presented. Detailed measurements using a micro-scale conductivity probe were carried out[...]
Article : texte imprimé
The effect of particle-particle collision on the trajectories of saltating grains in open-channel flows is investigated. The vertical distributions of saltating particles are also analysed. A stochastic particle-particle collision model was desi[...]
Article : texte imprimé
Motion of spheres falling through fluids is a classic problem in fluid mechanics. The problem is solved for steady motion and other special cases such as for small and large Reynolds numbers, but not yet for transitional flow motion because of t[...]
Article : texte imprimé
Rocio Luz Fernandez, Auteur ;
Genevieve Cauchon-Voyer, Auteur ;
Jacques Locat, Auteur
|
A fan delta developed under the constraints of a moving point of flow-sediment supply is described. The sediment mixtures used in the experiments were chosen to approximate field conditions, with the coarser fractions depositing to form the tops[...]
Article : texte imprimé
Oscar Castro-Orgaz, Auteur
|
Steady free-surface flow in open channels may be analysed by the reduction of the two-dimensional (2D) potential flow problem to a quasi-2D potential flow approach by inclusion of streamline curvature and inclination effects following Fawer's th[...]
Article : texte imprimé
Sang Soo Han, Auteur ;
Biron, Pascale M., Auteur ;
Amruthur S. Ramamurthy, Auteur
|
Flow around a sharp open-channel bend is highly three-dimensional (3D) due to the combined effects of secondary flow, a large free surface variation and flow separation along the inner wall. Continuous vanes often used in closed curved conduits [...]
Article : texte imprimé
Tobias Meile, Auteur ;
Boillat, Jean-Louis, Auteur ;
Anton J. Schleiss, Auteur
|
Transverse or longitudinal movements of a water body are observed for flows along cavities, river embayments, groyne fields or harbours. They are significant for certain flow conditions and geometrical properties. To study the effect of large-sc[...]
Article : texte imprimé
An ordinary differential equation for velocity distribution and dip-phenomenon in open channel flows
An ordinary differential equation (ODE) for velocity distribution in open channel flows is presented based on an analysis of the Reynolds-averaged Navier-Stokes equations and a log-wake modified eddy viscosity distribution. This proposed equatio[...]
Article : texte imprimé
Joshua D. Mortensen, Auteur ;
Steven L. Barfuss, Auteur ;
Michael C. Johnson, Auteur
|
While there has been a great deal of research in air entrainment at hydraulic jumps within closed conduits, limited research has specifically addressed size-scale effects. To determine the significance of these effects in closed conduits, air fl[...]
Article : texte imprimé
The effect of bed obstruction on the dispersion of solid particles in a two-phase flow was numerically investigated. An algebraic slip mixture model was used to model this flow and the re-normalization group k-ε model to resolve flow turbulence.[...]
Article : texte imprimé
Giuseppe Oliveto, Auteur ;
Victor Comuniello, Auteur ;
Trupti Bulbule, Auteur
|
Local scour downstream of spillways is an important problem in hydraulic engineering. The objective of this experimental study was to investigate the temporal evolution of local scour downstream of a spillway followed by a positive-step stilling[...]
Article : texte imprimé
Yingkui Wang, Auteur ;
Chunbo Jiang, Auteur ;
Dongfang Liang, Auteur
|
The hydrodynamic properties of free surface vortices at hydraulic intakes were investigated. Based on the axisymmetric Navier-Stokes equations and empirical assumptions, two sets of formulations for the velocity distributions and the free surfac[...]
Article : texte imprimé
Yildirim, Nevzat, Auteur ;
Akay Huseyın, Auteur ;
Kerem Tastan, Auteur
|
The critical submergence for a group of multiple pipe intakes is predicted using a potential flow solution. Experimental and theoretical results indicate that the critical submergence is considerably affected by the flows and relative positions [...]
Article : texte imprimé
James F. Fox, Auteur ;
Brian J. Belcher, Auteur
|
Visualization and length-scale estimates are provided for turbulence in open channel flow over a gravel-bed. Results obtained using the digital particle image velocimetry (PIV) followed by post-processing with proper orthogonal decomposition sho[...]
Exemplaires(0)
| Disponibilité | ||||
|---|---|---|---|---|
| aucun exemplaire | ||||
