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 : Effectiveness of installed large woody debris for providing hydraulic diversity
Effectiveness of installed large woody debris for providing hydraulic diversity
Author : Mark C. Stone, Michael E. Barber
Large woody debris (LWD) is installed in King County, Washington, USA agricultural drainage ditches to provide hydraulic diversity for fish. However, the effectiveness of LWD in providing hydraulic diversity in this setting is not clear. In this study, the influence of installed LWD on the flow field was investigated in two King County drainage ditches. This was accomplished through a combination of field observations and numerical simulations. Limited hydraulic diversity was observed in the wake directly behind the installed LWD. The numerical simulations indicated the presence of a limited velocity shelter less than 20 cm downstream of the LWD. It was concluded that the installation of LWD in King County drainage ditches is not an effective method for increasing hydraulic diversity.
File Size : 1,539,879 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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