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 : 33rd Congress - Vancouver (2009) : Topic A: Advances in the Fundamentals of Water Science and Engineering : The characteristics of hydraulic jump on rough bed stilling basins
The characteristics of hydraulic jump on rough bed stilling basins
Author : A.Gohari, J.Farhoudi
The results of an experimental investigation on the characteristics of hydraulic jump on artificially rough bed channel are reported. The experiments were conducted under different flow discharges over square cross strips with varying openings and heights. In the experimental program wooden strips were cut and imposed across a stilling basin. During the investigation different roughness elements were considered with five distinct openings and two heights. The rough bed stilling basin was then subjected to three different supercritical flows. In total, 210 experiments were performed where the Froude number was ranged from 2.98 to 9.89 where the sequent depth, energy loss and shear force coefficient were studied. It was found that the sequent depth of hydraulic jump is considerably decreasing compared with smooth beds. It was also observed that the sequent depth decreases as the opening of rough elements increases. However, the height of roughness elements did not show any considerable effect on the characteristics of hydraulic jump. Some relationships were expressed to estimate the characteristics of the hydraulic jump on rough bed stilling basins.
File Size : 1,578,436 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 33rd Congress - Vancouver (2009)
Article : Topic A: Advances in the Fundamentals of Water Science and Engineering
Date Published : 09/08/2009
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