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 : 34th Congress - Brisbane (2011) : THEME 5: Environmental Hydraulics and Hydrology : Using hydrodynamic modelling tools to optimise the design of fishways in victoria
Using hydrodynamic modelling tools to optimise the design of fishways in victoria
Author : Y.Zhu1 , J.R.Rennie1,C.M. Beardshaw 1 and F. Donohue2
Fishways facilitate movement of fish past in-stream structures. A fishway creates hydraulic conditions that enable the movement of native fish otherwise limited in passing high velocity water or excessive turbulence. The design and construction cost of fishways has limited widespread uptake. Our team optimised hydraulic design and construction of the vertical-slot fishway. We removed the uncertainties in design hydraulic conditions through the utilization of hydrodynamic models. Using DHI MIKE 21, flow conditions in fishways were examined in detail. Design refinements enabled the optimisation of hydraulic conditions meeting criteria set by fish biologists. Modelling processes enhanced the understanding of vertical-slot fishway hydraulics, optimising design. Our design approach has been to reduce construction cost. Our resultant civil designs are modular, employing box culverts and pre-cast slot units, potentially halving the cost of a fishway. Our design process provides confidence that fish are able to pass a structure whilst reducing costs associated with construction.
File Size : 1,730,758 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 5: Environmental Hydraulics and Hydrology
Date Published : 01/07/2011
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