Boundary layer separation by a step in surface temperature

Méndez, F. and Treviño, César and Liñán Martínez, Amable (1992). Boundary layer separation by a step in surface temperature. "International Journal of Heat and Mass Transfer", v. 35 (n. 10); pp. 2725-2738. ISSN 0017-9310.

Description

Title: Boundary layer separation by a step in surface temperature
Author/s:
  • Méndez, F.
  • Treviño, César
  • Liñán Martínez, Amable
Item Type: Article
Título de Revista/Publicación: International Journal of Heat and Mass Transfer
Date: 1992
ISSN: 0017-9310
Volume: 35
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Motopropulsión y Termofluidodinámica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Abstract—The free-interaction influence of thermal expansion process in the boundary layer gas flow is analysed in this paper, using the formalism of the Triple-Deck theory. The physical model considered herein is the forced convection of a gas flowing over a flat plate subject to a step change in the surface temperature, taking place at a certain distance from the leading edge. There is a fundamental parameter 7"w, defined as the ratio of the wall temperature to the free stream temperature. For values of Tw close to one, the governing equations can be linearized and solved with the aid of the Fourier transform method. However, for values of this parameter not close to one, a numerical treatment is required to solve the governing equations. Using finite-difference methods, the numerical results for the pressure, skin friction, thickness displacement and Nusselt number are presented for different values of T„. Finally, for a critical value of this temperature ratio, the boundary layer separates.

More information

Item ID: 1530
DC Identifier: http://oa.upm.es/1530/
OAI Identifier: oai:oa.upm.es:1530
Official URL: http://www.sciencedirect.com/science//journal/00179310
Deposited by: Biblioteca ETSI Aeronauticos
Deposited on: 20 Apr 2009
Last Modified: 20 Apr 2016 06:52
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