Anisotropy in Direct Numerical Simulations of Homogeneous Stratified Turbulence

ORAL

Abstract

One of the main characteristics of stratified turbulence is the presence of anisotropy. We conduct a series of Direct Numerical Simulations (DNS) of both stable and unstable homogeneous stratified turbulence and investigate the characteristics of anisotropy in length scales and other turbulent statistics. We compare the observed quantities to derived scaling relationships based on the Froude number. Lastly, we discuss the impact of anisotropy on the development of applicable LES models for wind farm simulations.

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Authors

  • Jeremy Melvin

    Institute for Computational Engineering and Sciences, The University of Texas at Austin

  • Robert Moser

    The University of Texas at Austin, University of Texas at Austin, Institute for Computational Engineering and Sciences, The University of Texas at Austin, Univ of Texas, Austin, Institute for Computational Engineering and Sciences, UT-Austin