Lifted laminar jet diffusion flames

Liñán Martínez, Amable and Fernández Tarrazo, Eduardo and Vera Coello, Marcos and Sánchez Pérez, Antonio Luis (2005). Lifted laminar jet diffusion flames. "Combustion Science and Technology,", v. 177 ; pp. 933-953. ISSN 0010-2202.


Title: Lifted laminar jet diffusion flames
  • Liñán Martínez, Amable
  • Fernández Tarrazo, Eduardo
  • Vera Coello, Marcos
  • Sánchez Pérez, Antonio Luis
Item Type: Article
Título de Revista/Publicación: Combustion Science and Technology,
Date: 2005
Volume: 177
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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This paper addresses the numerical description of lifted flames in axisymmetric laminar coflow jets. The analysis considers moderately large values of the Reynolds number, when the boundary-layer approximation can be used to describe the slender mixing region that extends between the jet exit and the flame, providing the profiles of velocity and mixture fraction that exist immediately upstream from the flame front region. The description of the nonslender flame front region, which provides the front propagation velocity as an eigenvalue, requires integration of the Navier-Stokes equations with account taken of the reaction and thermal expansion effects. The limiting formulations corresponding to cases of practical interest, including large values of the air-to-fuel stoichiometric ratio, are briefly discussed. Illustrative numerical results are given for flames lifted or propagating at distances small compared with the jet development length, where the mixing layer is nearly planar.

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Item ID: 1356
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Deposited by: Biblioteca ETSI Aeronauticos
Deposited on: 07 Feb 2009
Last Modified: 20 Apr 2016 06:48
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