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Comparison of Two Airfoils for Active Drag Reduction in Turbulent Flow

In: High Performance Computing in Science and Engineering '20

Author

Listed:
  • Marian Albers

    (RWTH Aachen University, Institute of Aerodynamics)

  • Matthias Meinke

    (RWTH Aachen University, Institute of Aerodynamics)

  • Wolfgang Schröder

    (RWTH Aachen University, Institute of Aerodynamics
    RWTH Aachen University, JARA Center for Simulation and Data Science)

Abstract

Active flow control of the turbulent flow over two airfoils of different shape is performed with the goal of increasing the overall aerodynamic efficiency. Large-eddy simulations are performed to investigate the impact of spanwise traveling transversal surface waves which are applied to a large percentage of the suction and the pressure side of the DRA2303 and NACA4412 airfoils at a chord based Reynolds number of $$\mathrm {Re}_c = 400,000$$ Re c = 400 , 000 . The results show a substantial decrease of the total integrated drag together with a slight increase of the lift. A detailed analysis reveals a decrease of the turbulent stresses and an attenuation of the boundary layer growth, resulting in an improvement of the lift-drag ratio for both airfoils.

Suggested Citation

  • Marian Albers & Matthias Meinke & Wolfgang Schröder, 2021. "Comparison of Two Airfoils for Active Drag Reduction in Turbulent Flow," Springer Books, in: Wolfgang E. Nagel & Dietmar H. Kröner & Michael M. Resch (ed.), High Performance Computing in Science and Engineering '20, pages 281-294, Springer.
    • Handle: RePEc:spr:sprchp:978-3-030-80602-6_18
    DOI: 10.1007/978-3-030-80602-6_18
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