Curvature and velocity of methane-air Bunsen flame tips

García-Soriano, G. and García-Ybarra, P.L. and Higuera Antón, Francisco (2012). Curvature and velocity of methane-air Bunsen flame tips. "Flow Turbulence and Combustion", v. 89 (n. 2); pp. 173-182. ISSN 13866184. https://doi.org/10.1007/s10494-010-9321-0.

Description

Title: Curvature and velocity of methane-air Bunsen flame tips
Author/s:
  • García-Soriano, G.
  • García-Ybarra, P.L.
  • Higuera Antón, Francisco
Item Type: Article
Título de Revista/Publicación: Flow Turbulence and Combustion
Date: 2012
ISSN: 13866184
Volume: 89
Subjects:
Freetext Keywords: Combustion, PIV, Flame aerodynamics
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

PIV and photographic recording are used to measure the velocity of the fresh gas and the shape of the reaction layer in a region around the tip of a methane- air Bunsen flame attached to a cylindrical burner. The results compare well with numerical simulations carried out with an infinite activation energy reaction model. The experimental and numerical results confirm that the well-known linear relation between flame velocity and flame stretch derived from asymptotic theory for weakly curved and strained flames is valid for small and moderate values of the flame stretch if the modified definition of stretch introduced by Echekki and Mungal (Proc Combust Inst 23:455–461,1990) and Poinsot et al. (Combust Sci Technol 81:45–73,1992) is used. However, the relation between flame velocity and modified stretch ceases to be linear and approaches a square root law for large values of the stretch, when the curvature of the flame tip becomes large compared to the inverse of the thickness of a planar flame

Funding Projects

TypeCodeAcronymLeaderTitle
Madrid Regional GovernmentHYSYCOMB, S2009ENE-1597UnspecifiedUnspecifiedUnspecified

More information

Item ID: 15742
DC Identifier: http://oa.upm.es/15742/
OAI Identifier: oai:oa.upm.es:15742
DOI: 10.1007/s10494-010-9321-0
Official URL: http://www.springerlink.com/content/6x14004p911qj232/
Deposited by: Memoria Investigacion
Deposited on: 07 Nov 2014 19:05
Last Modified: 17 Jan 2017 08:14
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