Flame dynamics and structures of partially premixed cool flames

Christopher B. Reuter, Sang Hee Won, Yiguang Ju

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Partially premixed cool flames have been modeled numerically and then experimentally established in an ozone-assisted counterflow burner using dimethyl ether as a fuel. A double flame structure, consisting of a cool diffusion flame and a cool premixed flame, has been found computationally at moderate strain rates. The impact of ozone on the low-temperature chemistry and radical pool can be seen in the structure of the premixed flame, where the fuel is more fully oxidized and the heat release is greater than the diffusion flame. It is also found that high-temperature ignition is more sensitive to fuel addition in the premixture due to enhanced production of HO2. Experimental results support the existence of the double cool flame structure and the increased reactivity of the premixed cool flame.

Original languageEnglish (US)
Title of host publication54th AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624103933
DOIs
StatePublished - Jan 1 2016
Event54th AIAA Aerospace Sciences Meeting, 2016 - San Diego, United States
Duration: Jan 4 2016Jan 8 2016

Publication series

Name54th AIAA Aerospace Sciences Meeting
Volume0

Other

Other54th AIAA Aerospace Sciences Meeting, 2016
CountryUnited States
CitySan Diego
Period1/4/161/8/16

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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  • Cite this

    Reuter, C. B., Won, S. H., & Ju, Y. (2016). Flame dynamics and structures of partially premixed cool flames. In 54th AIAA Aerospace Sciences Meeting (54th AIAA Aerospace Sciences Meeting; Vol. 0). American Institute of Aeronautics and Astronautics Inc, AIAA. https://doi.org/10.2514/6.2016-1207