75th Annual Meeting of the APS Division of Fluid Dynamics (November 20, 2022 — November 22, 2022)

P0004: Scale-to-scale energy transfers in the atmospheric boundary layer

  • Abhishek Paraswarar Harikrishnan, Free University of Berlin
  • Cedrick Ansorge, Free University of Berlin
  • Rupert Klein, Free University of Berlin
  • Nikki Vercauteren, University of Oslo
DOI: https://doi.org/10.1103/APS.DFD.2022.GFM.P0004

In this poster, beautiful horizontal slices of inter-scale energy transfer and viscous dissipation at dissipative scales in the outer layer of a stably stratified atmospheric boundary layer is shown.

The background picture shows a closeup look of viscous dissipation at y+ = 170. The top and middle panels show both energy transfer and viscous dissipation at two heights y+ = 100 and y+ = 170, both of which take large values where coherent structures are known to exist i.e., within the turbulent regions of the flow. The last panel shows vorticity magnitude for the full simulation domain.

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