National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

Details

Evaluate effects of hydraulic turbulence on the survival of migratory fish: design and construction of experimental apparatus to study the potential effects of turbulence on fish.

DE2001782030

Publication Date	2001
Personal Author	Odeh, M.
Page Count	9
Abstract	This report presents the completed design and construction process, and working details, of the test apparatus for the turbulence project. As mentioned in the first progress report, this type of experiment has not been attempted previously. In addition, turbulence data in the tailrace of a power plant are not available for reference. We plan to generate turbulence intensities and scale based on representative flow velocities downstream of draft tubes as well as visual observations of flow conditions in a typical tailrace area. Various combinations of nozzles will be used to generate mixing inside a large tank cavity, referred to herein as the turbulence chamber. The turbulence chamber was made with steel frame and clear acrylic sides and bottom. The clear sides and bottom will facilitate viewing and videotaping from outside. Nozzle velocities and water surface profiles will be accurately monitored with calibrated flow measurement devices to insure repeatability of the hydraulic conditions during biological testing.
Keywords	Hydraulics Turbulence Fish migration Survival Flow velocities Flow measurement
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Bonneville Power Administration, Portland, OR.; Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200125
Contract Number	2000AI26531

Evaluate effects of hydraulic turbulence on the survival of migratory fish: design and construction of experimental apparatus to study the potential effects of turbulence on fish.

Evaluate effects of hydraulic turbulence on the survival of migratory fish: design and construction of experimental apparatus to study the potential effects of turbulence on fish.
DE2001782030

Publication Date	2001
Personal Author	Odeh, M.
Page Count	9
Abstract	This report presents the completed design and construction process, and working details, of the test apparatus for the turbulence project. As mentioned in the first progress report, this type of experiment has not been attempted previously. In addition, turbulence data in the tailrace of a power plant are not available for reference. We plan to generate turbulence intensities and scale based on representative flow velocities downstream of draft tubes as well as visual observations of flow conditions in a typical tailrace area. Various combinations of nozzles will be used to generate mixing inside a large tank cavity, referred to herein as the turbulence chamber. The turbulence chamber was made with steel frame and clear acrylic sides and bottom. The clear sides and bottom will facilitate viewing and videotaping from outside. Nozzle velocities and water surface profiles will be accurately monitored with calibrated flow measurement devices to insure repeatability of the hydraulic conditions during biological testing.
Keywords	Hydraulics Turbulence Fish migration Survival Flow velocities Flow measurement
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Bonneville Power Administration, Portland, OR.; Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200125
Contract Number	2000AI26531