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Thermodynamic Fluctuations Behaviour during a Sheared Turbulence/Shock Interaction

  • S. Jamme
  • M. Crespo
  • P. Chassaing
Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design book series (NNFM, volume 110)

Abstract

Direct Numerical Simulation is used to study the mechanisms underlying the production of turbulent density fluctuations in a sheared turbulent flow with uniform mean velocity gradient and non-uniform mean density and temperature gradients. The coupling between the production mechanism of the Reynolds stresses and the one of the fluctuating density is investigated through the budgets of several relevant turbulent quantities. An interaction of this kind of turbulent flow with a shock wave is then considered in order to elucidate the effect of the shock on the previous mechanisms. The influence of the sign of the upstream correlation \(\overline{u'_1T'}\) is finally reported.

Keywords

Shock Wave Mach Number Direct Numerical Simulation Reynolds Stress Production Mechanism 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • S. Jamme
    • 1
  • M. Crespo
    • 1
  • P. Chassaing
    • 1
  1. 1.Université de Toulouse, ISAEToulouseFrance

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