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Heat Transfer Research
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ISSN Imprimir: 1064-2285
ISSN On-line: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.2017018750
pages 1195-1202

ESTIMATION OF THE CRITICAL RAYLEIGH NUMBER AS A FUNCTION OF THE INITIAL TURBULENCE OF THE BOUNDARY LAYER AT A VERTICAL HEATED PLATE

Artur V. Dmitrenko
Department of Thermal Physics, National Research Nuclear University "MEPhI", 31 Kashirskoe Shosse, Moscow, 115409, Russia; Department of Power Engineering, Moscow State University of Railway Engineering (MIIT), 9 Obraztsov St., Moscow, 127994, Russia

RESUMO

Based on stochastic equations and equivalence of measures, formulas of critical Rayleigh numbers depending on the initial turbulence of the boundary layer on a vertical heated plate are derived analytically. The results of calculations using new formulas show agreement with experimental data for the first and second Rayleigh numbers.


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