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Generalized wall functions for turbulent flows with strong adverse pressure gradient

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Abstract

The generalized wall functions for turbulent flows with strong adverse pressure gradients are derived on the basis of the asymptotic theory of near-wall turbulence. The generalized wall functions have a correct asymptotic behavior in the limit of zero friction velocity and can be applied to computations of flows under a strong adverse pressure gradient and with separation or reattachment. Calculations of a turbulent boundary layer in a strong adverse pressure gradient with the aid of the developed modified k-ɛ model of turbulence and comparison with the experimental data validate the advantages of the generalized wall functions over traditional wall functions based on the logarithmic law of the wall.

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Authors and Affiliations

  1. Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, pr. Akad. Lavrent’eva 1, Novosibirsk, 630090, Russia

    D. Ph. Sikovsky

  2. Novosibirsk State University, ul. Pirogova 2, Novosibirsk, 630090, Russia

    D. Ph. Sikovsky

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  1. D. Ph. Sikovsky
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Correspondence to D. Ph. Sikovsky.

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Sikovsky, D.P. Generalized wall functions for turbulent flows with strong adverse pressure gradient. J. Engin. Thermophys. 20, 89–100 (2011). https://doi.org/10.1134/S1810232811010085

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  • DOI: https://doi.org/10.1134/S1810232811010085

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