Flame spread in laminar mixing layers: the triple flame

Kioni, P.N. and Rogg, B. and Bray, K.N.C. and Liñán Martínez, Amable (1993). Flame spread in laminar mixing layers: the triple flame. "Combustion and Flame", v. 95 ; pp. 276-290. ISSN 0010-2180.

Description

Title: Flame spread in laminar mixing layers: the triple flame
Author/s:
  • Kioni, P.N.
  • Rogg, B.
  • Bray, K.N.C.
  • Liñán Martínez, Amable
Item Type: Article
Título de Revista/Publicación: Combustion and Flame
Date: 1993
ISSN: 0010-2180
Volume: 95
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

In the present paper we investígate flame spread in laminar mixing layers both experimentally and numerically. First, a burner has been designed and built such that stationary triple ñames can be stabilised in a coflowing stream with well defined linear concentration gradients and well defined uniform flow velocity at the inlet to the combustión chamber. The burner itself as well as first experimental results obtained with it are presented. Second, a theoretical model is formulated for analysis of triple flames in a strained mixing laycr generated by directing a fuel stream and an oxidizer stream towards each other. Here attention is focused on the stagnation región where by means of a similarity formulation the three-dimensional flow can be described by only two spatial coordinates. To solve the governing equations for the limiting case in which a thermal-diffusional model results, a numerical solution procedure based on self-adaptive mesh refinement is developed. For the thermal-diffusional model, the structure of the triple flame and its propagation velocity are obtained by solving numerically the governing similarity equations for a wide range of strain rates.

More information

Item ID: 1542
DC Identifier: http://oa.upm.es/1542/
OAI Identifier: oai:oa.upm.es:1542
Deposited by: Biblioteca ETSI Aeronauticos
Deposited on: 28 Apr 2009
Last Modified: 20 Apr 2016 06:52
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