Publication de 18 numéros par an
ISSN Imprimer: 1064-2285
ISSN En ligne: 2162-6561
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Heat Transfer in Laminar-Turbulent Bypass Transition
RÉSUMÉ
The results of the study of heat transfer in bypass laminar-to-turbulent transition (BLTT), arising in the presence of local separation on the leading edge of a flat plate with non-gradient streamlining at an elevated degree of turbulence Tue = 3.6−2.6% are presented. It is confirmed that an upper BLTT characterized by monotonic changes in the coefficients of heat transfer takes place under these conditions. BLTT of this type is diagnosed and its boundaries are determined on the basis of an analysis of distributions of coefficients of friction and heat transfer, velocity profiles, fluctuations and a formparameter. A scheme for calculation of heat transfer in the presence of BLTT that is based on use of eddy viscosity on the outer edge of a dynamic boundary layer as a main criterion which determines intensity of heat transfer.