High pressure jet flame numerical analysis of CO emissions by means of the flamelet generated manifolds technique

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Abstract

In the present paper a computational analysis of a high pressure confined premixed turbulent methane/air jet flames is presented. In this scope, chemistry is reduced by the use of the Flamelet Generated Manifold method [1] and the fluid flow is modeled in an LES and RANS context. The reaction evolution is described by the reaction progress variable, the heat loss is described by the enthalpy and the turbulence effect on the reaction is represented by the progress variable variance. The interaction between chemistry and turbulence is considered through a presumed probability density function (PDF) approach. The use of FGM as a combustion model shows that combustion features at gas turbine conditions can be satisfactorily reproduced with a reasonable computational effort. Furthermore, the present analysis indicates that the physical and chemical processes controlling carbon monoxide (CO) emissions can be captured only by means of unsteady simulations.
Original languageEnglish
Title of host publication11th International Conference of Numerical Analysis and Applied Mathematics 2013 (ICNAAM-2013), 21-27 September 2013, Rhodes
EditorsT. Simos, G. Psihoyios, Ch. Tsitouras
Place of PublicationRhodes
PublisherAmerican Institute of Physics
Pages136-139
ISBN (Print)978-0-7354-1184-5
DOIs
Publication statusPublished - 2013

Publication series

NameAIP Conference Proceedings
Volume1558
ISSN (Print)0094-243X

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