The hydrogen–air burning rate near the lean flammability limit

Fernández Galisteo, Daniel and Sánchez Pérez, Antonio Luis and Liñán Martínez, Amable and Williams, F.A. (2009). The hydrogen–air burning rate near the lean flammability limit. "Combustion Theory and Modelling", v. 13 (n. 4); pp. 741-761. ISSN 1364-7830. https://doi.org/10.1080/13647830903154559.

Description

Title: The hydrogen–air burning rate near the lean flammability limit
Author/s:
  • Fernández Galisteo, Daniel
  • Sánchez Pérez, Antonio Luis
  • Liñán Martínez, Amable
  • Williams, F.A.
Item Type: Article
Título de Revista/Publicación: Combustion Theory and Modelling
Date: August 2009
Volume: 13
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

This paper investigates the inner structure of the thin reactive layer of hydrogen–air fuellean deflagrations close to the flammability limit. The analysis, which employs seven elementary reactions for the chemistry description, uses the ratio of the characteristic radical and fuel concentrations as a small asymptotic parameter, enabling an accurate analytic expression for the resulting burning rate to be derived. The analysis reveals that the steady-state assumption for chemical intermediaries, applicable on the hot side of the reactive layer, fails, however, as the crossover temperature is approached, providing a nonnegligible higher-order correction to the burning rate. The results can be useful, for instance, in future investigations of hydrogen deflagration instabilities near the lean flammability limit.

More information

Item ID: 1973
DC Identifier: http://oa.upm.es/1973/
OAI Identifier: oai:oa.upm.es:1973
DOI: 10.1080/13647830903154559
Deposited by: Biblioteca ETSI Aeronauticos
Deposited on: 04 Dec 2009 07:47
Last Modified: 20 Apr 2016 11:46
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