On the Role of Coherent Structures in a Lid Driven Cavity Flow

  • Benjamin Kadoch
  • Emmanuel Leriche
  • Kai Schneider
  • Marie Farge
Conference paper
Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design book series (NNFM, volume 110)


The coherent vortex extraction (CVE) is a technique based on the nonlinear filtering of the vorticity field projected onto an orthonormal wavelet basis. The coherent vortices of the flow are reconstructed from few strong wavelet coefficients, while the incoherent background flow corresponds to the majority of weak wavelet coefficients. Here CVE is applied to a lid driven cavity flow. Only 2.3% of wavelet coefficients are necessary to capture the coherent structures and contains almost all the enstrophy. The incoherent flow, which is the remaining, is structureless and noise-like. The results show that lid driven cavity flows are characterized by the presence of pronounced coherent structures.


Direct Numerical Simulation Coherent Structure Compression Rate Direct Numerical Simulation Data Coherent Part 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Benjamin Kadoch
    • 1
  • Emmanuel Leriche
    • 2
  • Kai Schneider
    • 1
  • Marie Farge
    • 3
  1. 1.M2P2–UMR 6181 CNRS & CMI, Universités d’Aix-MarseilleMarseille Cedex 13France
  2. 2.Faculté des Sciences et TechniquesUniversité Jean-MonnetSaint-ÉtienneFrance
  3. 3.LMD–CNRS, ENSParis Cedex 5France

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