Please use this identifier to cite or link to this item: http://hdl.handle.net/11422/8830
Type: Artigo
Title: Note on a thermal law of the wall for separating and recirculating flows
Author(s)/Inventor(s): Cruz, Daniel Onofre de Almeida
Freire, Atila Pantaleão Silva
Abstract: Indisponível.
Abstract: The characteristics of the turbulent boundary layer near a separation point are studied here. The emphasis is on providing analytical expressions for the velocity and temperature near-wall solutions which are also valid in the region of reverse flow. These expressions can then be used as boundary conditions in numerical schemes that use two-equation differential models. The paper proposes a new expression for the description of the near-wall characteristic length. The temperature profiles near the wall are described by a newly proposed expression that reduces to a logarithmic profile in the attached region, and assumes a minus half power law profile at the separation point.
Keywords: Turbulence
Boundary layer
Thermal law
Subject CNPq: CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOS
Production unit: Núcleo Interdisciplinar de Dinâmica dos Fluidos
Publisher: Elsevier
In: International Journal of Heat and Mass Transfer
Volume: 45
Issue: 7
Issue Date: 17-Jan-2002
DOI: 10.1016/S0017-9310(01)00232-0
Publisher country: Brasil
Language: eng
Right access: Acesso Aberto
ISSN: 0017-9310
Appears in Collections:Engenharias

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