Blowoff mechanism of harmonically forced bluff body stabilized turbulent premixed flames

Swetaprovo Chaudhuri; Stanislav Kostka; Michael W. Renfro; Baki M. Cetegen

doi:10.1016/j.combustflame.2011.08.005

Blowoff mechanism of harmonically forced bluff body stabilized turbulent premixed flames

Swetaprovo Chaudhuri, Stanislav Kostka, Michael W. Renfro, Baki M. Cetegen

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

Flame blowoff under harmonic forcing of upstream mixture velocity is analyzed for bluff-body stabilized conical premixed flames in a laboratory burner. It is found that the forced vortex shedding phenomenon within the recirculation zone, accompanies flame blowoff when the convective wavelength of the imposed oscillation is larger than the recirculation zone length in the streamwise direction. The experimental results obtained from combined particle image velocimetry and planar laser induced fluorescence of OH radical provide evidence for this behavior. The differences between forced and unforced flame blowoff are also discussed.

Original language	English
Pages (from-to)	638-640
Number of pages	3
Journal	Combustion and Flame
Volume	159
Issue number	2
DOIs	https://doi.org/10.1016/j.combustflame.2011.08.005
State	Published - Feb 2012

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Fuel Technology
Energy Engineering and Power Technology
General Physics and Astronomy

Access to Document

10.1016/j.combustflame.2011.08.005

Cite this

@article{3d2d77a60eea49fbb7c1f9b28b64112f,

title = "Blowoff mechanism of harmonically forced bluff body stabilized turbulent premixed flames",

abstract = "Flame blowoff under harmonic forcing of upstream mixture velocity is analyzed for bluff-body stabilized conical premixed flames in a laboratory burner. It is found that the forced vortex shedding phenomenon within the recirculation zone, accompanies flame blowoff when the convective wavelength of the imposed oscillation is larger than the recirculation zone length in the streamwise direction. The experimental results obtained from combined particle image velocimetry and planar laser induced fluorescence of OH radical provide evidence for this behavior. The differences between forced and unforced flame blowoff are also discussed.",

author = "Swetaprovo Chaudhuri and Stanislav Kostka and Renfro, {Michael W.} and Cetegen, {Baki M.}",

year = "2012",

month = feb,

doi = "10.1016/j.combustflame.2011.08.005",

language = "English",

volume = "159",

pages = "638--640",

number = "2",

}

TY - JOUR

T1 - Blowoff mechanism of harmonically forced bluff body stabilized turbulent premixed flames

AU - Chaudhuri, Swetaprovo

AU - Kostka, Stanislav

AU - Renfro, Michael W.

AU - Cetegen, Baki M.

PY - 2012/2

Y1 - 2012/2

N2 - Flame blowoff under harmonic forcing of upstream mixture velocity is analyzed for bluff-body stabilized conical premixed flames in a laboratory burner. It is found that the forced vortex shedding phenomenon within the recirculation zone, accompanies flame blowoff when the convective wavelength of the imposed oscillation is larger than the recirculation zone length in the streamwise direction. The experimental results obtained from combined particle image velocimetry and planar laser induced fluorescence of OH radical provide evidence for this behavior. The differences between forced and unforced flame blowoff are also discussed.

AB - Flame blowoff under harmonic forcing of upstream mixture velocity is analyzed for bluff-body stabilized conical premixed flames in a laboratory burner. It is found that the forced vortex shedding phenomenon within the recirculation zone, accompanies flame blowoff when the convective wavelength of the imposed oscillation is larger than the recirculation zone length in the streamwise direction. The experimental results obtained from combined particle image velocimetry and planar laser induced fluorescence of OH radical provide evidence for this behavior. The differences between forced and unforced flame blowoff are also discussed.

UR - http://www.scopus.com/inward/record.url?scp=84355161735&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84355161735&partnerID=8YFLogxK

U2 - 10.1016/j.combustflame.2011.08.005

DO - 10.1016/j.combustflame.2011.08.005

M3 - Article

AN - SCOPUS:84355161735

SN - 0010-2180

VL - 159

SP - 638

EP - 640

JO - Combustion and Flame

JF - Combustion and Flame

IS - 2

ER -

Blowoff mechanism of harmonically forced bluff body stabilized turbulent premixed flames

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this