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Low Speed Streaks Instability of Turbulent Boundary Layer Flows with Adverse Pressure Gradient

  • J. -P. Laval
  • M. Marquillie
  • U. Ehrenstein
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 141)

Abstract

A Direct Numerical Simulation of turbulent flow subjected to an adverse pressure gradient (APG) was performed. As already noticed by many authors in such configurations, a second outer peak of turbulent kinetic energy is observed in the region of APG. In the present configuration, this peak is due to the production of intense vortices which are shown to be related to the instability of low speed streaks.

Keywords

Turbulent Kinetic Energy Direct Numerical Simulation Turbulent Boundary Layer Streamwise Velocity Adverse Pressure Gradient 
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 2012

Authors and Affiliations

  1. 1.Univ Lille Nord de France, CNRS, UMR 8107Villeneuve d AscqFrance
  2. 2.Aix Marseille Univ, IRPHE UMR 6594, CNRSMarseille 13France

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