A DNS Study on Global and Local Flame Structures in Thin Reaction Zones

Basmil Yenerdag, Masayasu Shimura, Kozo Aoki, Yoshitsugu Naka, Mamoru Tanahashi, Yuzuru Nada

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Abstract

Three-dimensional direct numerical simulations of methane-air turbulent premixed flame propagating in homogenous isotropic turbulence are conducted to investigate local and global flame structure in thin reaction zones. GRI-Mech 3.0 is used to represent methane-air reactions. The equivalence ratio of unburned mixture is 0.6 and 1.0. For a better understanding of the local flame structure in thin reaction zones, distributions of mass fractions of major species, heat release rate and temperature are investigated. To clarify effects of turbulence on the local and global flame structures, the statistical characteristics of flame elements are also revealed.

Original languageEnglish
JournalSAE Technical Papers
Volume2015-September
Issue numberSeptember
DOIs
Publication statusPublished - 1 Sep 2015
EventJSAE/SAE 2015 International Powertrains, Fuels and Lubricants Meeting, FFL 2015 - Kyoto, Japan
Duration: 1 Sep 20154 Sep 2015

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Yenerdag, B., Shimura, M., Aoki, K., Naka, Y., Tanahashi, M., & Nada, Y. (2015). A DNS Study on Global and Local Flame Structures in Thin Reaction Zones. SAE Technical Papers, 2015-September(September). https://doi.org/10.4271/2015-01-1909