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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| Impact of grain size distribution on bed topography around a groyne |
| Author : |
H. Zhang1, H. Mizutani2 and H. Nakagawa1 |
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This paper presented an experimental study on the impact of grain size distribution on the bed topography around an impermeable groyne. The importance of two governing parameters, i.e. the mean grain size D and the geometric standard deviation σg, was emphasized with quantitative evidences. It was found in the current experiments that with the increase of D, the maximum local scour depth decreased and the slope of the scour hole increased for a sediment bed with a uniform grain size distribution. The maximum local scour depth in a non-uniform sediment bed was smaller compared with that in a uniform one and generally decreased with the increase of σg.
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| File Size : |
884,135 bytes |
| File Type : |
Adobe Acrobat Document |
| Chapter : |
IAHR World Congress Proceedings
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| Category : |
34th Congress - Brisbane (2011)
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| Article : |
THEME 4: Responding to Shifting Water Resources
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| Date Published : |
01/07/2011 |
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