Simulation of Tailrace Hydrodynamics Using Computational Fluid Dynamics Models

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This report investigates the feasibility of using computational fluid dynamics (CFD) tools to investigate hydrodynamic flow fields surrounding the tailrace zone below large hydraulic structures. Previous and ongoing studies using CFD tools to simulate gradually varied flow with multiple constituents and forebay/intake hydrodynamics have shown that CFD tools can provide valuable information for hydraulic and biological evaluation of fish passage near hydraulic structures. These studies however are incapable of simulating the rapidly varying flow fields that involving breakup of the free-surface, such as those through and below high flow outfalls and spillways. Although the use of CFD tools for these … continued below

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Cook, Christopher B. & Richmond, Marshall C. May 1, 2001.

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This report investigates the feasibility of using computational fluid dynamics (CFD) tools to investigate hydrodynamic flow fields surrounding the tailrace zone below large hydraulic structures. Previous and ongoing studies using CFD tools to simulate gradually varied flow with multiple constituents and forebay/intake hydrodynamics have shown that CFD tools can provide valuable information for hydraulic and biological evaluation of fish passage near hydraulic structures. These studies however are incapable of simulating the rapidly varying flow fields that involving breakup of the free-surface, such as those through and below high flow outfalls and spillways. Although the use of CFD tools for these types of flow are still an active area of research, initial applications discussed in this report show that these tools are capable of simulating the primary features of these highly transient flow fields.

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  • May 1, 2001

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  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 7, 2016, 9:16 p.m.

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Cook, Christopher B. & Richmond, Marshall C. Simulation of Tailrace Hydrodynamics Using Computational Fluid Dynamics Models, report, May 1, 2001; Richland, Washington. (https://digital.library.unt.edu/ark:/67531/metadc934408/: accessed June 9, 2023), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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