Characteristics of Low Frequency Aero-acoustic Noise Radiation for a Wind Turbine Generator of NREL Phase VI

NREL Phase VI 풍력발전기 저주파 소음방사 특성

  • 모장오 (ATES CFD 컨설팅사업부) ;
  • 김병윤 (ATES 중공업.건설부, 중부.남부지사) ;
  • 류병남 (ATES 중공업.건설부, 중부.남부지사) ;
  • 이영호 (한국해양대학교기계.정보 공학부)
  • Published : 2009.06.25

Abstract

The purpose of this work is to predict the low frequency aero-acoustic noise generated from the horizontal axis wind turbine, NREL Phase VI using large eddy simulation and Ffowcs-Williams and Hawkings model provided in the commercial code, FLUENT. Calculated aerodynamic performances such as shaft torque and power are compared with experimentally measured value. Performance results show a good agreement with experimental data within about 0.8%. If the distance by two times is changed from 32D to 64D toward the downstream region, sound pressure level is reduced by about 6.4dB.

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