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Direct numerical simulation of bypass transition under free-stream turbulence for compressible flows

In: High Performance Computing in Science and Engineering '21

Author

Listed:
  • Duncan Ohno

    (Universität Stuttgart, Institut für Aero- und Gasdynamik (IAG))

  • Björn Selent

    (Universität Stuttgart, Institut für Aero- und Gasdynamik (IAG))

  • Markus J. Kloker

    (Universität Stuttgart, Institut für Aero- und Gasdynamik (IAG))

  • Ulrich Rist

    (Universität Stuttgart, Institut für Aero- und Gasdynamik (IAG))

Abstract

Direct numerical simulations (DNS) of bypass transition of a flat-plate boundary-layer subject to free-stream turbulence (FST) were performed. A synthetic turbulent inflow is generated by superposition of modes of the continuous spectrum resulting from linear stability theory (LST). The present article briefly explains the adaption of the method for a fully compressible framework, including the generation of turbulence as well as the treatment of the inflow boundary conditions. The results of a flat-plate flow at three different integral turbulent length scales were compared and validated with results from the literature. In addition, a performance analysis of the codes and methods used was performed on the HLRS Hawk supercomputer.

Suggested Citation

  • Duncan Ohno & Björn Selent & Markus J. Kloker & Ulrich Rist, 2023. "Direct numerical simulation of bypass transition under free-stream turbulence for compressible flows," Springer Books, in: Wolfgang E. Nagel & Dietmar H. Kröner & Michael M. Resch (ed.), High Performance Computing in Science and Engineering '21, pages 223-238, Springer.
    • Handle: RePEc:spr:sprchp:978-3-031-17937-2_13
    DOI: 10.1007/978-3-031-17937-2_13
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