IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 32nd Congress - Venice (2007) : THEME A: Engineering and Management of Fresh-water Systems : Sedimentation in storm-water tanks: bed shear stress versus bed turbulent kinetic energy
Sedimentation in storm-water tanks: bed shear stress versus bed turbulent kinetic energy
Author : Matthieu Dufresne, Josť Vazquez, Abdelali Terfous, Abdellah Ghenaim, JeanBernard Poulet
The lack of knowledge about flow and pollution in storm-water tanks remains a significant problem for their design. Efficiency and sediment spatial distribution measurements are compared with computational fluid dynamics (CFD) simulated results. Because the trap boundary condition does not take into account the fact that particles can be resuspended after the first impact on the bed, two threshold boundary conditions have been implemented and compared: the bed turbulent kinetic energy (BTKE) condition and the bed shear stress (BSS) condition. They both well describe the efficiency of the tank but only the BTKE condition well describes the spatial distribution of deposits on the bed for all the inflow velocities we have investigated.
File Size : 1,535,440 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 32nd Congress - Venice (2007)
Article : THEME A: Engineering and Management of Fresh-water Systems
Date Published : 01/07/2007
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