Effect of surface permeability on the structure of a separated turbulent flow and heat transfer behind a backward-facing step
- Авторлар: Terekhov V.1, Terekhov V.1
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Мекемелер:
- Kutateladze Institute of Thermophysics, Siberian Branch
- Шығарылым: Том 58, № 2 (2017)
- Беттер: 254-263
- Бөлім: Article
- URL: https://journals.rcsi.science/0021-8944/article/view/160721
- DOI: https://doi.org/10.1134/S0021894417020080
- ID: 160721
Дәйексөз келтіру
Аннотация
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.
Негізгі сөздер
Авторлар туралы
V. Terekhov
Kutateladze Institute of Thermophysics, Siberian Branch
Хат алмасуға жауапты Автор.
Email: vt@itp.nsc.ru
Ресей, Novosibirsk, 630090
V. Terekhov
Kutateladze Institute of Thermophysics, Siberian Branch
Email: vt@itp.nsc.ru
Ресей, Novosibirsk, 630090