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Signature of a Cubical Canopy on the Spatial Dynamics of an Atmospheric Boundary Layer

  • Jérémy BasleyEmail author
  • Laurent Perret
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 196)

Abstract

The present work investigates the influence of the plan density of a cube-based canopy on the coherent structures developing in the roughness sub-layer of an atmospheric boundary layer. Stereo Particle Image Velocimetry is employed using a large field of view in a horizontal plane, so as to identify both the large meandering structures of the boundary layer and the dynamics associated with the wake of the canopy. Pre-multiplied two-dimensional spectra show wall-normal velocity fluctuations are constrained by the pitch of the canopy.

Notes

Acknowledgements

Financial support from the French National Research Agency through research Grant URBANTURB No. ANR-14-CE22-0012-01 is acknowledged.

References

  1. 1.
    R.J. Adrian, K.T. Christensen, Z.-C. Liu, Analysis and interpretation of instantaneous turbulent velocity fields. Exp. Fluids 29, 275–290 (2000)CrossRefGoogle Scholar
  2. 2.
    K. Blackman, L. Perret, Non-linear interactions in a boundary layer developing over an array of cubes using stochastic estimation. Phys. Fluids 28, 095108 (2016)CrossRefGoogle Scholar
  3. 3.
    O. Coceal, A. Dobre, T.G. Thomas, S.E. Belcher, Structure of turbulent flow over regular arrays of cubical roughness. J. Fluid Mech. 589, 375–409 (2007)CrossRefzbMATHGoogle Scholar
  4. 4.
    A. Inagaki, M. Kanda, Organized structure of active turbulence over an array of cubes within the logarithmic layer of atmospheric flow. Bound. Layer Meteorol. 135(2), 209–228 (2010)CrossRefGoogle Scholar
  5. 5.
    J.H. Lee, A. Seena, S.-H. Lee, H.J. Sung, Turbulent boundary layers over rod- and cube-roughened walls. J. Turbul. 13(40), 1–26 (2012)MathSciNetzbMATHGoogle Scholar
  6. 6.
    I. Marusic, B.J. McKeon, P.A. Monkewitz, H.M. Nagib, A.J. Smits, K. Sreenivasan, Wall-bounded turbulent flows at high Reynolds numbers: recent advances and key issues. Phys. Fluids 22(6), 065103 (2010)CrossRefzbMATHGoogle Scholar
  7. 7.
    M. Placidi, B. Ganapathisubramani, Effects of frontal and plan solidities on aerodynamic parameters and the roughness sublayer in turbulent boundary layers. J. Fluid Mech. 782, 541–566 (2015)MathSciNetCrossRefGoogle Scholar

Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.LHEEA, Ecole Centrale Nantes (CNRS UMR 6598)Nantes CedexFrance

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