Accession Number DE2013-1049100
Title Measurement of Velocity Deficit at the Downstream of a 1:10 Axial Hydrokinetic Turbine Model.
Publication Date 2013
Media Count 5p
Personal Author B. Gunawan C. Hill L. P. Chamorro V. S. Neary
Abstract Wake recovery constrains the downstream spacing and density of turbines that can be deployed in turbine farms and limits the amount of energy that can be produced at a hydrokinetic energy site. This study investigates the wake recovery at the downstream of a 1:10 axial flow turbine model using a pulse-to-pulse coherent Acoustic Doppler Profiler (ADP). In addition, turbine inflow and outflow velocities were measured for calculating the thrust on the turbine. The result shows that the depth-averaged longitudinal velocity recovers to 97% of the inflow velocity at 35 turbine diameter (D) downstream of the turbine.
Keywords Acoustic measurement
Axial flow
Deficits
Density
Hydrokinetics
Pulses
Turbines
Velocities

 
Source Agency Technical Information Center Oak Ridge Tennessee
NTIS Subject Category 97O - Miscellaneous Energy Conversion & Storage
47B - Dynamic Oceanography
Corporate Author Oak Ridge National Lab., TN.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1326
Contract Number DE-AC05-00OR22725

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