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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 : The effect of vegetation along floodplain edges on flow parametres in compound meandering channels
The effect of vegetation along floodplain edges on flow parametres in compound meandering channels
Author : Zulhilmi Ismail and Koji Shiono
Experiments are conducted in compound meandering channels with partially roughened floodplain by blocks to investigate the effect of blocks on the beahviour of stage-discharge curve, sediment transport rate and bedform. Rectangular blocks are used as vegetation and placed along the edge of meandering compound channel for attempting to show flow interaction between the floodplain flow and the main channel flow. Various densities of blocks are also used to investigate the density effect on stage discharge curve, sediment transport rate and bedforms. Stage-discharge curves for different block densities in the fixed bed case are quite different from those in the mobile bed case. Flow resistance is much higher in the mobile case than in the fixed bed case. The sediment transport rate decreases differently in shallow water depth range for different block arrangement. Block density and arrangement significantly affect the behaviour of overall flow resistance and sediment transport rate in the compound meandering channel.
File Size : 530,353 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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