Numerical and Experimental Study on Negative Buoyance Induced Vortices in N-Butane Jet Flames

Handle URI:
http://hdl.handle.net/10754/593175
Title:
Numerical and Experimental Study on Negative Buoyance Induced Vortices in N-Butane Jet Flames
Authors:
Xiong, Yuan ( 0000-0001-5328-3487 ) ; Cha, Min Suk ( 0000-0003-4059-3421 ) ; Chung, Suk-Ho ( 0000-0001-8782-312X )
Abstract:
Near nozzle flow field in flickering n-butane diffusion jet flames was investigated with a special focus on transient flow patterns of negative buoyance induced vortices. The flow structures were obtained through Mie scattering imaging with seed particles in a fuel stream using continuous-wave (CW) Argon-ion laser. Velocity fields were also quantified with particle mage velocimetry (PIV) system having kHz repetition rate. The results showed that the dynamic motion of negative buoyance induced vortices near the nozzle exit was coupled strongly with a flame flickering instability. Typically during the flame flickering, the negative buoyant vortices oscillated at the flickering frequency. The vortices were distorted by the flickering motion and exhibited complicated transient vortical patterns, such as tilting and stretching. Numerical simulations were also implemented based on an open source C++ package, LaminarSMOKE, for further validations.
KAUST Department:
Clean Combustion Research Center
Publisher:
ASME International
Journal:
Volume 1: Symposia
Conference/Event name:
ASME/JSME/KSME 2015 Joint Fluids Engineering Conference
Issue Date:
26-Jul-2015
DOI:
10.1115/AJKFluids2015-15294
Type:
Conference Paper
Additional Links:
http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?doi=10.1115/AJKFluids2015-15294
Appears in Collections:
Conference Papers; Clean Combustion Research Center

Full metadata record

DC FieldValue Language
dc.contributor.authorXiong, Yuanen
dc.contributor.authorCha, Min Suken
dc.contributor.authorChung, Suk-Hoen
dc.date.accessioned2016-01-10T10:10:55Zen
dc.date.available2016-01-10T10:10:55Zen
dc.date.issued2015-07-26en
dc.identifier.doi10.1115/AJKFluids2015-15294en
dc.identifier.urihttp://hdl.handle.net/10754/593175en
dc.description.abstractNear nozzle flow field in flickering n-butane diffusion jet flames was investigated with a special focus on transient flow patterns of negative buoyance induced vortices. The flow structures were obtained through Mie scattering imaging with seed particles in a fuel stream using continuous-wave (CW) Argon-ion laser. Velocity fields were also quantified with particle mage velocimetry (PIV) system having kHz repetition rate. The results showed that the dynamic motion of negative buoyance induced vortices near the nozzle exit was coupled strongly with a flame flickering instability. Typically during the flame flickering, the negative buoyant vortices oscillated at the flickering frequency. The vortices were distorted by the flickering motion and exhibited complicated transient vortical patterns, such as tilting and stretching. Numerical simulations were also implemented based on an open source C++ package, LaminarSMOKE, for further validations.en
dc.publisherASME Internationalen
dc.relation.urlhttp://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?doi=10.1115/AJKFluids2015-15294en
dc.titleNumerical and Experimental Study on Negative Buoyance Induced Vortices in N-Butane Jet Flamesen
dc.typeConference Paperen
dc.contributor.departmentClean Combustion Research Centeren
dc.identifier.journalVolume 1: Symposiaen
dc.conference.dateJuly 26–31, 2015en
dc.conference.nameASME/JSME/KSME 2015 Joint Fluids Engineering Conferenceen
dc.conference.locationSeoul, South Koreaen
dc.eprint.versionPublisher's Version/PDFen
kaust.authorXiong, Yuanen
kaust.authorCha, Min Suken
kaust.authorChung, Suk-Hoen
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