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Studies in Turbulence pp 17–38Cite as

Modeling the Dissipation-Rate Equation with the Aid of Direct Simulation Data

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Abstract

The e-budget was computed from the direct simulation data (DNS) of Kim [10] for developed channel flow at Rer = 395. The relative magnitude of the terms in the ∈-equation is shown with the aid of scaling arguments, and the parameter governing this magnitude is established. The modeling of the terms in the equation is then addressed in the context of eddy-viscosity k-∈ models. Some existing models for the sum of all source and sink terms in the ∈-equation are tested against DNS data, and an improved model is proposed on the basis of these data.

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Author information

Authors and Affiliations

  1. University of Karlsruhe, Germany

    W. Rodi

  2. NASA Ames Research Center, Moffett Field, California, USA

    N. N. Mansour

Authors
  1. W. Rodi
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  2. N. N. Mansour
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Editor information

Editors and Affiliations

  1. Theoretical Flow Physics Branch, NASA Langley Research Center, 23665-5225, Hampton, Virginia, USA

    Thomas B. Gatski

  2. ICASE, NASA Langley Research Center, 23665-5225, Hampton, Virginia, USA

    Charles G. Speziale  & Sutanu Sarkar  & 

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© 1992 Springer-Verlag New York, Inc.

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Rodi, W., Mansour, N.N. (1992). Modeling the Dissipation-Rate Equation with the Aid of Direct Simulation Data. In: Gatski, T.B., Speziale, C.G., Sarkar, S. (eds) Studies in Turbulence. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-2792-2_2

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  • DOI: https://doi.org/10.1007/978-1-4612-2792-2_2

  • Publisher Name: Springer, New York, NY

  • Print ISBN: 978-1-4612-7672-2

  • Online ISBN: 978-1-4612-2792-2

  • eBook Packages: Springer Book Archive

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