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    The Dissipation Rate Transport Equation and Subgrid-Scale Models in Rotating Turbulence (1997)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The dissipation rate transport equation remains the most uncertain part of turbulence modeling. The difficulties arc increased when external agencies like rotation prevent straightforward dimensional analysis from determining the correct form of the modelled equation. In this work, the dissipation rate transport equation and subgrid scale models for rotating turbulence are derived from an analytical statistical theory of rotating turbulence. In the strong rotation limit, the theory predicts a turbulent steady state in which the inertial range energy spectrum scales as k(sup -2) and the turbulent time scale is the inverse rotation rate. This scaling has been derived previously by heuristic arguments.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA/CR-97-206250 , NAS 1.26:206250 , ICASE-97-63
    Format: application/pdf
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