DNS of complete transition to turbulence via oblique breakdown at Mach 3: Part II

Christian S.J. Mayer, Dominic A. Von Terzi, Hermann F. Fasel

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

3 Scopus citations

Abstract

The final stage of transition to turbulence in a supersonic flat-plate boundary layer at Mach 3 is investigated using Direct Numerical Simulations (DNS). A set of six simulations was performed to study the development of a pair of oblique waves from their initiation at low amplitudes to final breakdown to turbulence. In a previous paper (part I of this study), the linear and early nonlinear regimes of this so-called "oblique breakdown scenario" were discussed. The focus of the present paper (part II) is on the early turbulent regime, i.e. the region of the flow downstream of the maximum of skin friction. In this region, the flow is shown to have lost periodicity in time and to exhibit the typical mean flow and spectral properties of a turbulent boundary layer as known from the literature and theory. The DNS data clearly demonstrate that oblique breakdown can lead to a fully developed turbulent boundary layer and therefore may be a relevant mechanism for practical applications. authors.

Original languageEnglish (US)
Title of host publication39th AIAA Fluid Dynamics Conference
StatePublished - Dec 1 2009
Event39th AIAA Fluid Dynamics Conference - San Antonio, TX, United States
Duration: Jun 22 2009Jun 25 2009

Publication series

Name39th AIAA Fluid Dynamics Conference

Other

Other39th AIAA Fluid Dynamics Conference
CountryUnited States
CitySan Antonio, TX
Period6/22/096/25/09

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Aerospace Engineering

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    Mayer, C. S. J., Von Terzi, D. A., & Fasel, H. F. (2009). DNS of complete transition to turbulence via oblique breakdown at Mach 3: Part II. In 39th AIAA Fluid Dynamics Conference [2009-3558] (39th AIAA Fluid Dynamics Conference).