Numerical and asymptotic analysis of ignition processes

Treviño, César and Liñán Martínez, Amable (1994). Numerical and asymptotic analysis of ignition processes. In: "Combustion in High-Speed Flows". Kluwer Academic, Dordrecht, pp. 477-490. ISBN 079232806X.

Description

Title: Numerical and asymptotic analysis of ignition processes
Author/s:
  • Treviño, César
  • Liñán Martínez, Amable
Editor/s:
  • Buckmaster, John
  • Jackson, Thomas L.
  • Kumar, Ajay
Item Type: Book Section
Title of Book: Combustion in High-Speed Flows
Date: 1994
ISBN: 079232806X
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 this paper the transient process leading to ignition of a combustible mixture of lean hydrogen/air is studied using both Compu-tational Singular Perturbation (CSP) techniques as well as asymp-totic methods that allow us to deduce the most important regimes in the process as well as the characteristic times and the appropriate reduced kinetic mechanism involved. The CSP technique developed by Lam and co-workers has been used to follow closely the tempera-ture and species concentration evolution with time up to the ignition event. For lean mixtures, the most important intermedíate species is the atomic oxygen; the other radicals follow the quasi-steady state behavior. A closed form solution is then obtained for the ignition delay time, which compares very well with the numerical sohition with full kinetics.

More information

Item ID: 2062
DC Identifier: http://oa.upm.es/2062/
OAI Identifier: oai:oa.upm.es:2062
Deposited by: Biblioteca ETSI Aeronauticos
Deposited on: 17 Jan 2010 20:17
Last Modified: 20 Apr 2016 11:51
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