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Numerical Analysis of Turbulent Inflow Characteristics on Aerodynamic Loads of HAWT Rotor

Research Project

Project/Area Number 13650177
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Fluid engineering
Research InstitutionNagoya University

Principal Investigator

HASEGAWA Yutaka  Nagoya University, Research Center for Advanced Energy Conversion, Associate Professor, 高効率エネルギー変換研究センター, 助教授 (20198732)

Co-Investigator(Kenkyū-buntansha) IMAMURA Hiroshi  Nagoya University, Graduate School of Engineering, Associate Associate Professor, 工学研究科, 講師 (30303077)
ASAKURA Eiji  Nagoya University, Graduate School of Engineering, Research Associate, 工学研究科, 助手 (90135327)
KIKUYAMA Koji  Nagoya University, Graduate School of Engineering, Professor, 工学研究科, 教授 (90023192)
Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2002: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2001: ¥2,500,000 (Direct Cost: ¥2,500,000)
KeywordsNumerical Analysis / Horizontal Axis Wind Turbine / Inflow Condition / Acceleration Potential Method / Turbulent Flow / Unsteady Flow / Aerodynamic Characteristics / Fatigue Load / 翼型 / 失速
Research Abstract

This project is aimed at the development of numerical methods to simulate a turbulent wind field and to predict its influence on aerodynamic loads experienced by a HAWT rotor.
The turbulent wind field simulation generates time series of turbulent wind speed at several points in a rotor plane for use in the aerodynamic loads analysis, taking account of the correlation of the wind time series at a certain point with that at every other point. The wind field simulation model is constructed on the basis of a Fourier synthesis method (the Veer's model). In this model, the required inputs are the power spectrum densities (PSDs) and the coherence functions of the turbulent wind, which define the cross spectral densities (CSDs) between any two points in the rotor plane. The vector of complex Fourier coefficients of the simulated wind can be determined by adding random phases to the set of PSDs and CSDs. By performing an inverse Fourier transform of the vector, the time series of the wind is obtained.
For the calculation of aerodynamic loads on the rotor blades, an inviscid aerodynamic model based on an asymptotic acceleration potential method is adopted. This calculation model can easily evaluate the effects of the flow unsteadiness in the rotor plane induced by the wake. Unsteady aerodynamic loads caused by the dynamic stall effects are taken into account by using the ONERA method.
It is analyzed how the aerodynamic loads on the rotor (ex.flapping moment) respond to turbulence characteristics of the wind incoming to the rotor. Turbulence characteristics of the wind incoming to a turbine rotor bring about complicated aerodynamic loads on the wind turbine, which must be considered in the structural design process of the rotor blades. The present calculation model has a possibility to develop a simple design tool.

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (20 results)

All Other

All Publications (20 results)

  • [Publications] 長谷川 豊他3名: "水平軸風車ロータ空力特性に及ぼす流入風乱れ特性の影響"風力エネルギー. 25-4. 73-76 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 長谷川 豊他3名: "水平軸風車ロータに及ぼすウィンドシアの影響に関する数値解析"日本機械学会論文集. 68-674B. 2795-2802 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 長谷川 豊他3名: "乱れを伴う流入風による水平軸風車ロータの空力負荷特性"日本機械学会論文集. 68-681B(印刷中). (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Y.HASEGAWA, 他2名: "Numerical Analysis of Wind Turbulence Effects on Aerodynamic Load of HAWT Rotor"Proc. of ISROMAC9 (2002,Hawaii). FD-116. 1-6 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Y.HASEGAWA, 他2名: "Numerical Study on Effects of Turbulent Characteristics on Aerodynamic Behavior of HAWT Rotor"Proc. of 2001 European Wind Energy Conference (2001, Denmark). PG2・44. 1-4 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Y.HASEGAWA: "Numerical Analysis of Turbulent Inflow on Aerodynamic Loads of HAWT Rotor"Proc. of 5th JSME-KSME Fluid Engineering Conference. 02-207. 1-6 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Y.Hasegawa, et al.: "Numerical Analysis of Turbulent Inflow on Aerodynamic Loads of HAWT Rotor"Proceedings of 5th JSME-KSME Fluid Engineering Conference, (on CD-Rom). 02-207. 1-6 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Y.Hasegawa, et al.: "Numerical Analysis of Wind Turbulence Effects on Aerodynamic Load of HAWT Rotor"Proc.of ISROMAC9 (2002, Hawaii). FD-116. 1-6 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Y.Hasegawa, et al.: "Numerical Study on Effects of Turbulent Characteristics on Aerodynamic Behavior of HAWT Rotor"Proc.of 2001 European Wind Energy Conference (2001, Denmark). PG2・44. 1-4 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Y.Hasegawa, et al.: "Effects of Turbulent Inflow on Aerodynamic Performance of a Horizontal Axis Wind Turbine Rotor (in Japanese)"Wind Energy. 25-4. 73-76 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Y.Hasegawa, et al.: "Effects of Vertical Wind on Aerodynamic Loads of HAWT Rotor (in Japanese)"Transactions of JSME. 68-674B. 2795-2802 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Y.Hasegawa, et al.: "Unsteady Inflow Effects on a HAWT Aerodynamic Load Fluctuation on HAWT Rotor due to Turbulent Inflow Condition (in Japanese)"Transactions of JSME. 68-681B (in Press). (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Y.HASEGAWA: "Numerical Analysis of Turbulent Inflow on Aerodynamic Loads of HAWT Rotor"Proc. of 5th JSME-KSME Fluid Engineering Conference. 02-207. 1-6 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] K.KIKUYAMA: "Effects of Non-Uniform Inflow on Aerodynamic Behavior of Horizontal Axis Wind Turbine"Proc. of 2nd National Congress on Fluids Engineering. 02-01. 17-22 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 長谷川 豊: "水平軸風車ロータに及ぼすウィンドシアの影響に関する数値解析"日本機械学会論文集. 68-674B. 2795-2802 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 長谷川 豊: "非定常運転下における水平軸風車ロータ周りの流れ場に関する数値解析"日本機械学会講演論文集. 033-1. 47-48 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 長谷川 豊: "乱れを伴う流入風による水平軸風車ロータの空力負荷変動"日本機械学会論文集. 69-681B(掲載予定). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Y.HASEGAWA, 他2名: "Numerical Analysis of Wind Turbulence Effects on Aerodynamic Load of HAWT Rotor"Proc.of ISROMAC9(2002,Hawaii). FD-116. 1-6 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Y.HASEGAWA, 他2名: "Numerical Study on Effects of Turbulent Characteristics on Aerodynamic Behavior of HAWT Rotor"Proc.of 2001 European Wind Energy Conference(2001,Denmark). PG2・44. 1-4 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 長谷川豊, 他3名: "水平軸風車ロータ空力特性に及ぼす流入風乱れ特性の影響"風力エネルギー. 25・4. 73-76 (2001)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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