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 : Effect of suction on bedload transport rate
Effect of suction on bedload transport rate
Author : Xiao Xie LIU , Yee Meng CHIEW
The paper presents a preliminary study on suction effects on bedload transport rate. Three dimensionless groups, viz. Einsteinís parameter, undisturbed shear velocity ratio and modified densimetric Froude number were chosen to examine how suction affects bedload transport rate. Experimental results show that for the same undisturbed flow condition, the dimensionless bedload transport rate increases linearly (in logarithmic scale) with increasing suction rates. The equations for predicting bedload transport rate under suction were derived empirically. By considering how suction affects both the bed shear stress and critical shear stress for sediment entrainment, the increase in bedload transport rate due to suction is examined and discussed.
File Size : 349,197 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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