Aerodynamic performance enhancement using active flow control on DU96-W-180 wind turbine airfoil

Amr M. Halawa, Basman Elhadidi, Shigeo Yoshida

研究成果: ジャーナルへの寄稿記事

2 引用 (Scopus)

抄録

In this work, the objective was to investigate the influence of Active Flow Control on the improvement of a DU96-W-180 airfoil aerodynamic performance. A numerical simulation was done for incompressible unsteady low Reynolds Number flow at high angle of attack. The innovative approach was the use of an “Active Slat” where the periodic blowing effect was achieved by periodically opening and closing the slat passage. The major benefit of this concept is being flexible to a desired operating condition. A new OpenFOAM® solver was developed from the existing pisoFoam solver to simulate the active slat flow control technique. To get the best aerodynamic performance, the active slat should operate at the domain dominant frequencies. A Fast Fourier Transform (FFT) was performed to achieve the optimum slat excitation frequency. These frequencies will help in controlling the inherent instabilities in the boundary layer and thus improving the aerodynamic performance. Finally, active flow control simulations were applied using different excitation. Using the optimum FFT excitation frequency (f= 0.68 in the wake region) yields the best aerodynamic improvement of all tested frequencies. Improvements in lift coefficient were achieved up to 8%. Hence, the slatted airfoil is superior to the conventional clean configuration airfoil.

元の言語英語
ページ(範囲)16-24
ページ数9
ジャーナルEvergreen
5
発行部数1
出版物ステータス出版済み - 3 1 2018

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flow control
wind turbine
Airfoils
Flow control
Wind turbines
aerodynamics
Aerodynamics
Fast Fourier transforms
Fourier transform
Angle of attack
Blow molding
Reynolds number
simulation
Boundary layers
boundary layer
Computer simulation

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Surfaces, Coatings and Films
  • Management, Monitoring, Policy and Law

これを引用

Aerodynamic performance enhancement using active flow control on DU96-W-180 wind turbine airfoil. / Halawa, Amr M.; Elhadidi, Basman; Yoshida, Shigeo.

:: Evergreen, 巻 5, 番号 1, 01.03.2018, p. 16-24.

研究成果: ジャーナルへの寄稿記事

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