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dc.contributor.authorYamamoto, Kazuhiro
dc.contributor.authorIsobe, Yusuke
dc.contributor.authorHayashi, Naoki
dc.contributor.authorYamashita, Hiroshi
dc.contributor.authorChung, Suk Ho
dc.date.accessioned2015-08-12T09:27:24Z
dc.date.available2015-08-12T09:27:24Z
dc.date.issued2015-05
dc.identifier.citationYamamoto, K., Isobe, Y., Hayashi, N., Yamashita, H., & Chung, S. H. (2015). Behaviors of tribrachial edge flames and their interactions in a triple-port burner. Combustion and Flame, 162(5), 1653–1659. doi:10.1016/j.combustflame.2014.11.028
dc.identifier.issn00102180
dc.identifier.doi10.1016/j.combustflame.2014.11.028
dc.identifier.urihttp://hdl.handle.net/10754/566079
dc.description.abstractIn a triple-port burner, various non-premixed flames have been observed previously. Especially for the case with two lifted flames, such configuration could be suitable in studying interaction between two tribrachial flames. In the present study, the flame characteristics have been investigated numerically by adopting a reduced kinetic mechanism in the triple-port burner. Four different types of flame configurations, including two attached flames, inner lifted/outer attached flames, inner attached/outer lifted flames, and twin lifted flames, were successfully simulated depending on the flow conditions. The representative edge propagation speed of a single lifted flame or an upstream lifted flame in the case of twin lifted flames increased as the liftoff height became higher. In the twin lifted flames, the inner lifted flame was affected appreciably when the other flame was located further upstream such that the lifted flame located further downstream encountered the axial velocity acceleration induced by the gas expansion from the lifted flame located upstream, while thermal effects were not observed since the temperature of the incoming flow toward the lifted flame was not affected. A unique flip-flop behavior between the inner and outer flames, observed experimentally previously, was successfully captured in the simulation such that the inner lifted flame became attached to the nozzle as the liftoff height of the outer lifted flame grew higher with an increase in the outer air velocity.
dc.publisherElsevier BV
dc.subjectLifted flame
dc.subjectLiftoff height
dc.subjectNon-premixed flame
dc.subjectNumerical simulation
dc.subjectTribrachial edge flame
dc.titleBehaviors of tribrachial edge flames and their interactions in a triple-port burner
dc.typeArticle
dc.contributor.departmentClean Combustion Research Center
dc.contributor.departmentCombustion and Laser Diagnostics Laboratory
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalCombustion and Flame
dc.contributor.institutionDepartment of Mechanical Science and Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
kaust.personChung, Suk Ho


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