Mixing layer ignition of hydrogen

Treviño, César and Liñán Martínez, Amable (1995). Mixing layer ignition of hydrogen. "Combustion and Flame", v. 103 ; pp. 129-141. ISSN 0010-2180.


Title: Mixing layer ignition of hydrogen
  • Treviño, César
  • Liñán Martínez, Amable
Item Type: Article
Título de Revista/Publicación: Combustion and Flame
Date: 1995
Volume: 103
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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Official URL: http://www.sciencedirect.com/science//journal/00102180


A theoretical analysis is given for the high-temperature ignition in a laminar mixing layer between hydrogen and air at the high temperatures characteristic of supersonic combustión. We analyze the most important practical case where the temperature of the air stream is higher than that of the hydrogen stream. In this case, the chemical reactions responsible for ignition occur in the air side of the mixing layer, where the mixture is lean. A simplified reduced mechanism is found to describe the ignition process. The radicáis OH and H follow the steady-state approximation while the radical O is the chain branching species following an autocatalytic reaction with moderately large activation energy. Numerical results of the governing equations for large valúes of the activation energy are presented and from a symplified analysis, we obtain a closed form solution of the ignition distance as a function of the physicochemical parameters.

More information

Item ID: 1543
DC Identifier: http://oa.upm.es/1543/
OAI Identifier: oai:oa.upm.es:1543
Deposited by: Biblioteca ETSI Aeronauticos
Deposited on: 22 Apr 2009
Last Modified: 20 Apr 2016 06:52
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