Home > Research > Publications & Outputs > The effects of chemical kinetic mechanisms on l...

Electronic data

  • Revised manuscript

    Rights statement: This is the author’s version of a work that was accepted for publication in International Journal of Hydrogen Energy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Journal of Hydrogen Energy, 41, 26, 2016 DOI: 10.1016/j.ijhydene.2016.04.079

    Accepted author manuscript, 1.76 MB, PDF document

    Available under license: CC BY-NC-ND: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License

Links

Text available via DOI:

View graph of relations

The effects of chemical kinetic mechanisms on large eddy simulation (LES) of a nonpremixed hydrogen jet flame

Research output: Contribution to journalJournal articlepeer-review

Published
Close
<mark>Journal publication date</mark>13/07/2016
<mark>Journal</mark>International Journal of Hydrogen Energy
Issue number26
Volume41
Number of pages14
Pages (from-to)11427-11440
Publication StatusPublished
Early online date7/05/16
<mark>Original language</mark>English

Abstract

Five different chemical mechanisms for hydrogen combustion are employed in large eddy simulation of a nonpremixed hydrogen jet flame to investigate the ability of these mechanisms to represent the turbulence-chemistry interactions and other combustion phenomena. The mechanisms studied include a reduced mechanism, two detailed H2/O2 reaction mechanisms, as well as a detailed H2/CO mechanism and the GRI3.0 mechanism. Linear eddy model is incorporated to evaluate the effect of turbulence-chemistry interactions. Extensive simulations of a well-known experimental case (German Aerospace Centre DLR nonpremixed flame M2) have been performed for the purpose of validation. Comparisons against experimental data including scalar distribution profiles are presented where a reasonable agreement is observed for the detailed mechanisms. Flux analyses of the species conservation equations and ignition delay time tests showed that chemical kinetics plays a role in the development of flame structures in the jet flame. This study highlights the importance of precise descriptions of the chemical kinetics in LES of nonpremixed hydrogen combustion.

Bibliographic note

This is the author’s version of a work that was accepted for publication in International Journal of Hydrogen Energy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Journal of Hydrogen Energy, 41, 26, 2016 DOI: 10.1016/j.ijhydene.2016.04.079