Effect of surface permeability on the structure of a separated turbulent flow and heat transfer behind a backward-facing step
- Autores: Terekhov V.1, Terekhov V.1
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Afiliações:
- Kutateladze Institute of Thermophysics, Siberian Branch
- Edição: Volume 58, Nº 2 (2017)
- Páginas: 254-263
- Seção: Article
- URL: https://journals.rcsi.science/0021-8944/article/view/160721
- DOI: https://doi.org/10.1134/S0021894417020080
- ID: 160721
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Resumo
The structure and heat transfer in a turbulent separated flow in a suddenly expanding channel with injection (suction) through a porous wall are numerically simulated with the use of two-dimensional averaged Navier–Stokes equations, energy equations, and v2–f turbulence model. It is shown that enhancement of the intensity of the transverse mass flux on the wall reduces the separation region length in the case of suction and increases the separation region length in the case of injection up to complete boundary layer displacement. The maximum heat transfer coefficient as a function of permeability is accurately described by the asymptotic theory of a turbulent boundary layer.
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Sobre autores
V. Terekhov
Kutateladze Institute of Thermophysics, Siberian Branch
Autor responsável pela correspondência
Email: vt@itp.nsc.ru
Rússia, Novosibirsk, 630090
V. Terekhov
Kutateladze Institute of Thermophysics, Siberian Branch
Email: vt@itp.nsc.ru
Rússia, Novosibirsk, 630090