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

Duncan Ohno (), Björn Selent (), Markus J. Kloker () and Ulrich Rist ()
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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)

A chapter in High Performance Computing in Science and Engineering '21, 2023, pp 223-238 from Springer

Abstract: 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.

Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-031-17937-2_13

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DOI: 10.1007/978-3-031-17937-2_13

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