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Large Eddy Simulations of Stratified Atmospheric Flows Within a Deep Valley

  • C. Guilbaud
  • J. P. Chollet
  • S. Anquetin
Conference paper
Part of the ERCOFTAC Series book series (ERCO, volume 5)

Abstract

Large Eddy Simulations are used to compute atmospheric thermal circulations in complex terrain. The subgrid models are based either on the Smagorinsky formulation or on a subgrid kinetic energy equation. They are tested in a convective boundary layer and then used in a comparison with available measurements. The formulation with the subgrid kinetic energy gives as good results as the Smagorinsky formulation, but with more information available from the subgrid energy. The large eddy simulation of the atmosphere in a deep valley allows reproduction of the diurnal cycle of thermal winds and the progression of the inversion layer.

Keywords

Planetary Boundary Layer Convective Boundary Layer Subgrid Scale Deep Valley Large Scale Flow 
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 Science+Business Media Dordrecht 1997

Authors and Affiliations

  • C. Guilbaud
    • 1
  • J. P. Chollet
    • 1
  • S. Anquetin
    • 1
  1. 1.Laboratoire des Ecoulements Géophysiques et IndustrielsUJF-INPG-CNRSGRENOBLE cedex 9France

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