Application of vortex identification schemes to DNS data of transitional boundary layer

ORAL

Abstract

We have demonstrated how various vortex identification and visualization criteria perform using DNS data from a transitional and turbulent boundary layer by Sayadi et al. (submitted to J. Fluid Mech.). The presence of well-known $\Lambda$ vortices in the transitional region provides a well defined and yet realistic benchmark for evaluation of various criteria. We investigate the impact of changing the threshold used for iso-surface plotting.

*Brian Pierce acknowledges the support from the Stanford Graduate Fellowship.

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Authors

  • Brian Pierce

    • CTR, Stanford University
    • Stanford University, Center for Turbulence Research

  • Parviz Moin

    • Center for Turbulence Research, Stanford University
    • Stanford University
    • Center for Turbulence Research (CTR), Stanford
    • Stanford University, Center for Turbulence Research
    • CTR, Stanford University

  • Taraneh Sayadi

    • Center for Turbulence Research, Stanford University
    • Center for Turbulence Research (CTR), Stanford
    • Stanford University, Center for Turbulence Research