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TsAGI Science Journal

ISSN Print: 1948-2590
ISSN Online: 1948-2604

TsAGI Science Journal

DOI: 10.1615/TsAGISciJ.2016018425
pages 397-408

ESTIMATION OF THE GAS BLOWING EFFECT ON CONVECTIVE HEAT TRANSFER IN LAMINAR AND TURBULENT BOUNDARY LAYERS

Valerii Vladimirovich Gorskii
Central Aerohydrodynamic Institute (TsAGI), 1 Zhukovsky Str., Zhukovsky, Moscow Region, 140180, Russia
Mikhail Aleksandrovich Pugach
Central Aerohydrodynamic Institute (TsAGI), 1 Zhukovsky Str., Zhukovsky, Moscow Region, 140180; Moscow Institute of Physics and Technology (MIPT), 9 Institutskiy Pereulok, Dolgoprudny, Moscow Region, 141700, Russia

ABSTRACT

Systematic numerical solutions to the equations for a two-dimensional laminar−turbulent boundary layer on a permeable hemispherical surface obtained using a modified algebraic turbulence model are presented. A new engineering method is proposed for calculating the effect of blocking the convective heat transfer by blowing gas into the boundary layer. The results predicted by this method are compared with those obtained by previously derived formulas.


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