Flame Quenching Dynamics of High Velocity Flames in Rectangular Cross-section Channels

Handle URI:
http://hdl.handle.net/10754/625560
Title:
Flame Quenching Dynamics of High Velocity Flames in Rectangular Cross-section Channels
Authors:
Mahuthannan, Ariff Magdoom; Lacoste, Deanna; Damazo, Jason; Kwon, Eddie; Roberts, William L.
Abstract:
Understanding flame quenching for different conditions is necessary to develop safety devices like flame arrestors. In practical applications, the speed of a deflagration in the lab-fixed reference frame will be a strong function of the geometry through which the deflagration propagates. This study reports on the effect of the flame speed, at the entrance of a quenching section, on the quenching distance. A 2D rectangular channel joining two main spherical vessels is considered for studying this effect. Two different velocity regimes are investigated and referred to as configurations A, and B. For configuration A, the velocity of the flame is 20 m/s, while it is about 100 m/s for configuration B. Methane-air stoichiometric mixtures at 1 bar and 298 K are used. Simultaneous dynamic pressure measurements along with schlieren imaging are used to analyze the quenching of the flame. Risk assessment of re-ignition is also reported and analyzed.
KAUST Department:
Clean Combustion Research Center
Citation:
Mahuthannan AM, Lacoste DA, Damazo J, Kwon E, Roberts WL (2017) Flame Quenching Dynamics of High Velocity Flames in Rectangular Cross-section Channels. 55th AIAA Aerospace Sciences Meeting. Available: http://dx.doi.org/10.2514/6.2017-0823.
Publisher:
American Institute of Aeronautics and Astronautics
Journal:
55th AIAA Aerospace Sciences Meeting
Conference/Event name:
55th AIAA Aerospace Sciences Meeting
Issue Date:
5-Jan-2017
DOI:
10.2514/6.2017-0823
Type:
Conference Paper
Sponsors:
The research reported in this publication was supported partly by the Boeing Company and partly by Center Competitive Funding from King Abdullah University of Science and Technology (KAUST).
Additional Links:
https://arc.aiaa.org/doi/10.2514/6.2017-0823
Appears in Collections:
Conference Papers; Clean Combustion Research Center

Full metadata record

DC FieldValue Language
dc.contributor.authorMahuthannan, Ariff Magdoomen
dc.contributor.authorLacoste, Deannaen
dc.contributor.authorDamazo, Jasonen
dc.contributor.authorKwon, Eddieen
dc.contributor.authorRoberts, William L.en
dc.date.accessioned2017-10-03T12:49:25Z-
dc.date.available2017-10-03T12:49:25Z-
dc.date.issued2017-01-05en
dc.identifier.citationMahuthannan AM, Lacoste DA, Damazo J, Kwon E, Roberts WL (2017) Flame Quenching Dynamics of High Velocity Flames in Rectangular Cross-section Channels. 55th AIAA Aerospace Sciences Meeting. Available: http://dx.doi.org/10.2514/6.2017-0823.en
dc.identifier.doi10.2514/6.2017-0823en
dc.identifier.urihttp://hdl.handle.net/10754/625560-
dc.description.abstractUnderstanding flame quenching for different conditions is necessary to develop safety devices like flame arrestors. In practical applications, the speed of a deflagration in the lab-fixed reference frame will be a strong function of the geometry through which the deflagration propagates. This study reports on the effect of the flame speed, at the entrance of a quenching section, on the quenching distance. A 2D rectangular channel joining two main spherical vessels is considered for studying this effect. Two different velocity regimes are investigated and referred to as configurations A, and B. For configuration A, the velocity of the flame is 20 m/s, while it is about 100 m/s for configuration B. Methane-air stoichiometric mixtures at 1 bar and 298 K are used. Simultaneous dynamic pressure measurements along with schlieren imaging are used to analyze the quenching of the flame. Risk assessment of re-ignition is also reported and analyzed.en
dc.description.sponsorshipThe research reported in this publication was supported partly by the Boeing Company and partly by Center Competitive Funding from King Abdullah University of Science and Technology (KAUST).en
dc.publisherAmerican Institute of Aeronautics and Astronauticsen
dc.relation.urlhttps://arc.aiaa.org/doi/10.2514/6.2017-0823en
dc.titleFlame Quenching Dynamics of High Velocity Flames in Rectangular Cross-section Channelsen
dc.typeConference Paperen
dc.contributor.departmentClean Combustion Research Centeren
dc.identifier.journal55th AIAA Aerospace Sciences Meetingen
dc.conference.date2017-01-09 to 2017-01-13en
dc.conference.name55th AIAA Aerospace Sciences Meetingen
dc.conference.locationGrapevine, TX, USAen
dc.contributor.institutionBoeing Research and Technology, Seattle, , United Statesen
kaust.authorMahuthannan, Ariff Magdoomen
kaust.authorLacoste, Deannaen
kaust.authorDamazo, Jasonen
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