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Heat Transfer Research
インパクトファクター: 1.199 5年インパクトファクター: 1.155 SJR: 0.267 SNIP: 0.503 CiteScore™: 1.4

ISSN 印刷: 1064-2285
ISSN オンライン: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v29.i6-8.200
pages 513-517

Influence of External Turbulence on Heat Transfer in a Separated Flow Behind a Single Rib or a Step

Viktor I. Terekhov
Kutateladze Institute of Thermophysics, Laboratory of Thermal and Gas Dynamics, Russian Academy of Sciences, Siberian Branch, 630090,1, Acad. Lavrent'ev Avenue, Novosibirsk, Russia; Novosibirsk State Technical University, K. Markx av., 20, Novosibirsk, 630073, Russia
Nadezhda I. Yarygina
S. S. Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
R. F. Zhdanov
Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia

要約

An experimental study of the local heat transfer and static pressure distribution behind a rib or a step with three levels of free stream turbulence 1.5, 6.6, and 14.2% was carried out. The obstacle heights were h = 6, 10, 20, and 30 mm. The turbulization of an external flow exerts a perceptible influence on the enhancement of heat transfer behind a rib and a more appreciable one behind a step when the pressure coefficient increases slowly. The maximum magnification of heat transfer in a turbulized flow takes place at the point of joining of the separated flow moving upstream with an increase in turbulence intensity.


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