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International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.9

ISSN Druckformat: 2152-5102
ISSN Online: 2152-5110

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International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v31.i3.60
15 pages

Algebraic Models of Turbulent Viscosity and Heat Transfer in Analysis of Near-Wall Turbulent Flows

M. Lunis
Kyiv International University of Civil Aviation, Kyiv, Ukraine
V. I. Mamchuk
Kyiv International University of Civil Aviation, Kyiv, Ukraine
V. T. Movchan
Kyiv International University of Civil Aviation, Kyiv, Ukraine
L. A. Romanyuk
Kyiv International University of Civil Aviation, Kyiv, Ukraine
Eugene Alexeyevich Shkvar
Higher and Computational Mathematics Chair, National Aviation University 1 Cosmonaut Komarovave., 03058, Kiev, Ukraine

ABSTRAKT

This paper presents developed and tested algebraic models of turbulent viscosity and thermal conductivity coefficients. The models have been developed in the form of one formula valid across the whole boundary layer. The empirical coefficients and parameters for accounting the action of several physical factors being modified, the models are generalized to applications in the analysis of a large class of near-wall turbulent flows. The approximate analytical and numerical solutions of velocity and temperature distributions, skin-friction and heat transfer coefficients, that have been obtained with the models, are compared in the report with experimental and computed data of several authors.


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