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Heat Transfer Research
Fator do impacto: 0.404 FI de cinco anos: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Imprimir: 1064-2285
ISSN On-line: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v31.i1-2.60
pages 21-25

Susceptibility of a Thermal Turbulent Boundary Layer to a Various Effects

E. P. Dyban
Institute of Technical Thermophysics, National Academy of Sciences of Ukraine Kiev, Ukraine
Eleonora Ya. Epik
Institute of Engineering Thermophysics of National Academy of Sciences of Ukraine (IET NASU), 2a Zhelyabov Str., 03057, Kyiv, Ukraine

RESUMO

On the basis of experimental data an analysis of the combined effect of various disturbances (high free-stream turbulence, longitudinal pressure gradients, local closed separation on a leading edge of a streamlined surface) on the development of a turbulent boundary layer is carried out. It is shown that thermal characteristics are more conservative than hydrodynamic ones. A universal method of local heat transfer calculation under the superposition of the above effects is proposed. The method is based on the reaction of the characteristic thickness of a boundary layer to these effects.


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