DNS of transition to turbulence in a hypersonic boundary layer

Pramod K Subbareddy, Graham V. Candler

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We perform direct numerical simulations (DNS) of transition to turbulence in a hypersonic boundary layer flow. The flow conditions correspond to a Mach 6, cold-wall flow with a wall temperature to adiabatic temperature ratio (Tw/Taw) of around 0.16. Themomentum thickness Reynolds number Reθ goes up to around 6000 at the end of the computed turbulent zone. Comparisons are made to empirical skin-friction and heat transfer coefficients. We find that the Van Driest II and Eckert correlations work best along with a Reynolds Analogy Factor of ≈ 1.2. Statistics from the mean and fluctuating turbulent flow fields are briefly discussed. The hope is that the DNS database generated will be useful for physics based improvements of RANS and LES models.

Original languageEnglish (US)
Title of host publication41st AIAA Fluid Dynamics Conference and Exhibit
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781600869471
DOIs
StatePublished - 2011
Event41st AIAA Fluid Dynamics Conference and Exhibit 2011 - Honolulu, HI, United States
Duration: Jun 27 2011Jun 30 2011

Publication series

Name41st AIAA Fluid Dynamics Conference and Exhibit

Conference

Conference41st AIAA Fluid Dynamics Conference and Exhibit 2011
CountryUnited States
CityHonolulu, HI
Period6/27/116/30/11

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  • Cite this

    Subbareddy, P. K., & Candler, G. V. (2011). DNS of transition to turbulence in a hypersonic boundary layer. In 41st AIAA Fluid Dynamics Conference and Exhibit (41st AIAA Fluid Dynamics Conference and Exhibit). American Institute of Aeronautics and Astronautics Inc.. https://doi.org/10.2514/6.2011-3564