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Applied Mathematics and Mechanics

, Volume 29, Issue 1, pp 15–22 | Cite as

Numerical simulation of quasi-streamwise hairpin-like vortex generation in turbulent boundary layer

  • Zhang Nan  (张楠)Email author
  • Lu Li-peng  (陆利蓬)
  • Duan Zhen-zhen  (段真真)
  • Yuan Xiang-jiang  (袁湘江)
Article

Abstract

A mechanism for generation of near wall quasi-streamwise hairpin-like vortex (QHV) and secondary quasi-streamwise vortices (SQV) is presented. The conceptual model of resonant triad in the theory of hydrodynamic instability and direct numerical simulation of a turbulent boundary layer were applied to reveal the formation of QHV and SQV. The generation procedures and the characteristics of the vortex structures are obtained, which share some similarities with previous numerical simulations. The research using resonant triad conceptual model and numerical simulation provides a possibility for investigating and controling the vortex structures, which play a dominant role in the evolution of coherent structures in the near-wall region.

Key words

turbulence boundary layer coherent structure computer simulation streamwise vortex 

Chinese Library Classification

O357.5 

2000 Mathematics Subject Classification

76F16 

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Copyright information

© Editorial Committee of Appl. Math. Mech. and Springer-Verlag 2008

Authors and Affiliations

  • Zhang Nan  (张楠)
    • 1
    Email author
  • Lu Li-peng  (陆利蓬)
    • 1
  • Duan Zhen-zhen  (段真真)
    • 1
  • Yuan Xiang-jiang  (袁湘江)
    • 2
  1. 1.School of Jet PropulsionBeijing University of Aeronautics and AstronauticsBeijingP. R. China
  2. 2.National CFD LaboratoryBeijing University of Aeronautics and AstronauticsBeijingP. R. China

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