Open Channel Flow (open + channel_flow)

Distribution by Scientific Domains


Selected Abstracts


Size distributions of suspended particles in open channel flow over bed materials

ENVIRONMETRICS, Issue 2 2005
B. S. Mazumder
Controlled experiments have shown that the grain-size distribution of suspended sediments is related to bed material, flow velocity and height of suspension above the sand bed in an open channel flow. A theoretical model has been developed for computation of suspended grain-size distribution on the basis of continuity equations of sediment and water, using the computed bed-layer concentration as a reference. The proposed model includes the effect of suspension concentration into the mean velocity, turbulent and viscous shear stresses owing to the dynamic coupling between the flow and sediments in suspension. The effect of hindered settling due to the increased concentration in suspension is also taken into account. The model is considered to be a more general one than the existing models, and the results of the present model compare well with the experimental data. Copyright 2004 John Wiley & Sons, Ltd. [source]


Changing a winning formula: the hydraulics of open channel flow: an introduction By Hubert Chanson, 1999 Arnold, 495 pp.

HYDROLOGICAL PROCESSES, Issue 1 2001
Central, ISBN 0-340-74067-1 Co-published in North, South America by Wiley ISBN 0-470-36103-
No abstract is available for this article. [source]


High order interpolation methods for semi-Lagrangian models of mobile-bed hydrodynamics on Cartesian grids with cut cells

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, Issue 10-11 2005
Giorgio Rosatti
Abstract High order approximation methods based on radial basis functions are applied to the extension of semi-Lagrangian shallow water models to staggered Cartesian meshes with cut boundary cells. The accuracy and efficiency of the resulting semi-Lagrangian method is demonstrated by test cases simulating open channel flow. The derivative reconstruction provided by radial basis function interpolators is also employed successfully in the discretization of sediment transport models for mobile bed river flow. Copyright 2005 John Wiley & Sons, Ltd. [source]