Journal article
Study of the Free Surface Flow on an Ogee-Crested Fish Bypass
Journal of hydraulic engineering (New York, N.Y.), Vol.134(8), pp.1172-1175
08/2008
DOI: 10.1061/(ASCE)0733-9429(2008)134:8(1172)
Abstract
A study of the free surface flow on an ogee-crested fish bypass is presented. The commercial computational fluid dynamics (CFD) code Fluent 6.1 was used to perform the simulations. Structured/unstructured hybrid grids were used to accommodate the complex geometry that included gate slots, flow control gates, and an aeration slot. The volume of fluid (VOF) approach was used to model the water/air interface. The fish bypass exhibits complex free surface features including free nappes and air entrainment from the air slots. Free surface elevations on both sides of the nappe, pressure along the ogee surface, and discharge rating curves were compared against 1:24 experimental data from the laboratory model for different headwater elevations and gate settings. Limited comparison against measured velocities was also performed. Once deemed reliable through validation against experimental data, the computational model was used to analyze the flow field, supplementing the areas of limited experimental data. Though the paper presents the final fish bypass design, CFD was used to guide the design process and provide insight for several variations in the geometry.
Details
- Title: Subtitle
- Study of the Free Surface Flow on an Ogee-Crested Fish Bypass
- Creators
- Cagri Turan - University of IowaPablo M Carrica - University of IowaTroy Lyons - University of IowaDuncan Hay - Oakwood Consulting Inc. , , 237 Turtlehead Rd., Belcarra BC, Canada. E-mail: duncanhay@shaw.caLarry Weber - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Journal of hydraulic engineering (New York, N.Y.), Vol.134(8), pp.1172-1175
- Publisher
- American Society of Civil Engineers
- DOI
- 10.1061/(ASCE)0733-9429(2008)134:8(1172)
- ISSN
- 0733-9429
- eISSN
- 1943-7900
- Language
- English
- Date published
- 08/2008
- Academic Unit
- Civil and Environmental Engineering; Mechanical Engineering; IIHR--Hydroscience and Engineering
- Record Identifier
- 9984196963902771
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