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Title: Lidar measurement of wind velocity turbulence spectra encountered by a rotating turbine blade

Abstract

A homodyne CO/sub 2/ lidar system beam was conically scanned around a horizontal axis to measure the wind speed and turbulence characteristics encountered by a rotating turbine blade. Turbulence spectra obtained from the scanning lidar differed considerably from those calculated from fixed-point anemometer measurements, showing a redistribution of energy from lower to higher frequencies. The differences appeared more pronounced during periods when the atmosphere was stable.

Authors:
; ;
Publication Date:
Research Org.:
National Oceanic and Atmospheric Administration, Boulder, CO (USA). Wave Propagation Lab.
Sponsoring Org.:
USDOE, Office of Solar Power Applications, Wind Energy Technology Division
OSTI Identifier:
7101820
Report Number(s):
DOE/RL/10236-81/1
ON: DE82020966
DOE Contract Number:  
AC06-80RL10236
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
17 WIND ENERGY; WIND TURBINES; TURBULENCE; ANEMOMETERS; EXPERIMENTAL DATA; FOURIER TRANSFORMATION; OPTICAL RADAR; SPECTRA; TURBINE BLADES; VELOCITY; WIND; DATA; INFORMATION; INTEGRAL TRANSFORMATIONS; MACHINERY; MEASURING INSTRUMENTS; NUMERICAL DATA; RADAR; RANGE FINDERS; TRANSFORMATIONS; TURBINES; TURBOMACHINERY; 170602* - Wind Energy Engineering- Turbine Design & Operation

Citation Formats

Hardesty, R M, Korrell, J A, and Hall, Jr, F F. Lidar measurement of wind velocity turbulence spectra encountered by a rotating turbine blade. United States: N. p., 1982. Web. doi:10.2172/7101820.
Hardesty, R M, Korrell, J A, & Hall, Jr, F F. Lidar measurement of wind velocity turbulence spectra encountered by a rotating turbine blade. United States. doi:10.2172/7101820.
Hardesty, R M, Korrell, J A, and Hall, Jr, F F. Fri . "Lidar measurement of wind velocity turbulence spectra encountered by a rotating turbine blade". United States. doi:10.2172/7101820. https://www.osti.gov/servlets/purl/7101820.
@article{osti_7101820,
title = {Lidar measurement of wind velocity turbulence spectra encountered by a rotating turbine blade},
author = {Hardesty, R M and Korrell, J A and Hall, Jr, F F},
abstractNote = {A homodyne CO/sub 2/ lidar system beam was conically scanned around a horizontal axis to measure the wind speed and turbulence characteristics encountered by a rotating turbine blade. Turbulence spectra obtained from the scanning lidar differed considerably from those calculated from fixed-point anemometer measurements, showing a redistribution of energy from lower to higher frequencies. The differences appeared more pronounced during periods when the atmosphere was stable.},
doi = {10.2172/7101820},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}