Modeling the Dissipation Rate in Rotating Turbulent Flows

  • Charles G. Speziale
  • Rishi Raj
  • Thomas B. Gatski


A variety of modifications to the modeled dissipation rate transport equation that have been proposed during the past two decades to account for rotational strains are examined. The models are subjected to two crucial test cases: the decay of isotropic turbulence in a rotating frame and homogeneous shear flow in a rotating frame. It is demonstrated that these modifications do not yield substantially improved predictions for these two test cases and in many instances give rise to unphysical behavior. An alternative proposal, based on the use of the tensor dissipation rate, is made for the development of improved models.


Turbulent Kinetic Energy Dissipation Rate Shear Flow Isotropic Turbulence Homogeneous Turbulence 
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Copyright information

© Springer-Verlag New York, Inc. 1992

Authors and Affiliations

  • Charles G. Speziale
    • 1
  • Rishi Raj
    • 2
  • Thomas B. Gatski
    • 3
  1. 1.ICASENASA Langley Research Center HamptonUSA
  2. 2.City College of New YorkNew YorkUSA
  3. 3.NASA Langley Research Center HamptonUSA

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