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Drag Reduction by Surface Actuation

In: High Performance Computing in Science and Engineering '19

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
    JARA – High-Performance Computing, Forschungszentrum Jülich)

Abstract

The flow over an DRA2303 wing section is controlled by spanwise traveling transversal surface waves. The actuated flow field is investigated by large-eddy simulation. Approximately $$74{\%}$$ 74 % of the solid surface is deflected by a sinusoidal space- and time-dependent function in the wall-normal direction. Viscous drag reduction by $$8.6{\%}$$ 8.6 % with a strong decrease of skin-friction in the favorable pressure gradient region and an overall drag decrease by $$7.5{\%}$$ 7.5 % are achieved. Furthermore, a slight increase in lift is obtained for the external flow over a realistic geometry.

Suggested Citation

  • Marian Albers & Matthias Meinke & Wolfgang Schröder, 2021. "Drag Reduction by Surface Actuation," Springer Books, in: Wolfgang E. Nagel & Dietmar H. Kröner & Michael M. Resch (ed.), High Performance Computing in Science and Engineering '19, pages 295-308, Springer.
    • Handle: RePEc:spr:sprchp:978-3-030-66792-4_20
    DOI: 10.1007/978-3-030-66792-4_20
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