Flame behaviors within transient regime in helium-diluted laminar-lifted coflow-jet flames

S. H. Oh, K. H. Van, J. Park, O. B. Kwon, Suk Ho Chung, J. H. Yoon, S. I. Keel

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

Abstract

An experiment has been conducted to investigate flame behaviors in helium-diluted laminar lifted coflow jets within transient regime. There were two distinct self-excitation: the one was a buoyancy-driven self-excitation (hereafter, called BDSE) and the other was a capsized flame near flame extinction (hereafter, called CFFE) which shows a strange flame behavior that the lifted flame should be capsized to propagate to upstream like premixed flame. Numerical simulations for steady-state and reacting flows were used to find out phenomenon of BDSE and CFFE. The differences between the two self-excitations were shown and discussed.
Original languageEnglish (US)
Title of host publication11th Asia-Pacific Conference on Combustion, ASPACC 2017
PublisherCombustion Institute
StatePublished - Jan 1 2017

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