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This article is cited in 11 scientific papers (total in 11 papers)
Effect of surface permeability on the structure of a separated turbulent flow and heat transfer behind a backward-facing step
V. V. Terekhov, V. I. Terekhov Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia
Abstract:
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 $(v^2-f)$ 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 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.
Keywords:
turbulent flow, heat transfer, separated flow, backward-facing step, porous wall, injection, suction, heat transfer.
Received: 27.01.2016 Revised: 15.03.2016
Citation:
V. V. Terekhov, V. I. Terekhov, “Effect of surface permeability on the structure of a separated turbulent flow and heat transfer behind a backward-facing step”, Prikl. Mekh. Tekh. Fiz., 58:2 (2017), 78–89; J. Appl. Mech. Tech. Phys., 58:2 (2017), 254–263
Linking options:
https://www.mathnet.ru/eng/pmtf726 https://www.mathnet.ru/eng/pmtf/v58/i2/p78
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