• Corpus ID: 222133256

Subgrid-scale energy transfer and associated coherent structures in turbulent flow over a forest-like canopy

  title={Subgrid-scale energy transfer and associated coherent structures in turbulent flow over a forest-like canopy},
  author={Md. Abdus Samad Bhuiyan and Jahrul M. Alam},
  journal={arXiv: Fluid Dynamics},
Large eddy simulation allows to incorporate the important driving physics of turbulent flow through forest- or vegetation-like canopies. In this paper we investigate the effects of vortex stretching and coherent structures on the subgrid-scale (SGS) turbulence kinetic energy (TKE). We present three simulations (SGS-d/s/w) of turbulence-canopy interactions. SGS-d assumes a local, dynamic balance of SGS production with SGS dissipation. SGS-s averages the SGS contributions of coherent structures… 
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