Please use this identifier to cite or link to this item: http://hdl.handle.net/11422/9050
Type: Artigo
Title: Velocity and temperature distributions in compressible turbulent boundary layers with heat and mass transfer
Author(s)/Inventor(s): Freire, Atila Pantaleão Silva
Cruz, Daniel Onofre de Almeida
Pellegrini, Cláudio de Castro
Abstract: Indisponível.
Abstract: In the present work, asymptotic methods are used to derive new expressions for the law of the wall, for the law of the wake and for the skin-friction and the Stanton number equations, for compressible turbulent boundary layers with heat and mass transfer. The results are compared with previous theories and experiments showing good agreement. The two parameters in the law of the wall, the angular coefficient and the linear coefficient of the straight part of the velocity and the temperature profiles plotted in appropriate logarithmic coordinates, are shown to vary with Mach number. Only the second of these parameters, the linear coefficient of the straight line, is shown to vary with the injection rate. No dependence of these parameters on Eckert number, E could be assessed. Also, it emerges from the present analysis that the dissipation effects become important only when E = 0(ut−1), uT = non-dimensional friction velocity.
Keywords: Law of the wall
Turbulent boundary layers
Heat transfer
Subject CNPq: CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOS
Department : Núcleo Interdisciplinar de Dinâmica dos Fluidos
Publisher: Elsevier
In: International Journal of Heat and Mass Transfer
Volume: 38
Issue: 13
Issue Date: 7-Mar-2000
DOI: 10.1016/0017-9310(94)00352-V
Publisher country: Brasil
Language: eng
Right access: Acesso Aberto
ISSN: 0017-9310
Appears in Collections:Engenharias

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