On the structure, stabilization, and dual response of flat-burner flames

J. A. Eng; D. L. Zhu; C. K. Law

doi:10.1016/0010-2180(94)00102-X

On the structure, stabilization, and dual response of flat-burner flames

J. A. Eng, D. L. Zhu, C. K. Law

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

28 Scopus citations

Abstract

A comprehensive computational and experimental study has been conducted on the structure and stabilization dynamics of the classical planar flame over a flat, porous burner. The specific issue addressed is the apparent dual response nature of the flat-burner flames in that previous studies have shown the existence of two flame speeds for either a given heat loss rate or a given flame standoff distance. The present study demonstrates that the flame response is actually unique when the flame burning rate is considered to be the independent variable, that the turning point behavior of the flame response is a manifestation of system nonmonotonicity rather than extinction, and that the flat-burner flame does not appear to possess distinct extinction states. Results obtained from computational simulation of the flame structure with detailed transport and chemistry agree well with the experimental temperature and major species profiles determined through laser Raman spectroscopy.

Original language	English (US)
Pages (from-to)	645-652
Number of pages	8
Journal	Combustion and Flame
Volume	100
Issue number	4
DOIs	https://doi.org/10.1016/0010-2180(94)00102-X
State	Published - Mar 1995
Externally published	Yes

All Science Journal Classification (ASJC) codes

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

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10.1016/0010-2180(94)00102-X

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title = "On the structure, stabilization, and dual response of flat-burner flames",

abstract = "A comprehensive computational and experimental study has been conducted on the structure and stabilization dynamics of the classical planar flame over a flat, porous burner. The specific issue addressed is the apparent dual response nature of the flat-burner flames in that previous studies have shown the existence of two flame speeds for either a given heat loss rate or a given flame standoff distance. The present study demonstrates that the flame response is actually unique when the flame burning rate is considered to be the independent variable, that the turning point behavior of the flame response is a manifestation of system nonmonotonicity rather than extinction, and that the flat-burner flame does not appear to possess distinct extinction states. Results obtained from computational simulation of the flame structure with detailed transport and chemistry agree well with the experimental temperature and major species profiles determined through laser Raman spectroscopy.",

author = "Eng, {J. A.} and Zhu, {D. L.} and Law, {C. K.}",

note = "Funding Information: This work has been sponsored by the Microgravity Combustion Program of NASA-Lewis, under the technical monitoring of Mr. Kurt Sack-steder. JAE also acknowledges the support by the Air Force Office of Scientific Research through an AFRAPT &Iir Force Research in Aero Propulsion Technology) traineeship. We thank Mr. J. B. Liu and Mr. C. J, Sung of Princeton University for their help in taking and ana&zing the jlame structure data, Professor Peck Cho of the Michigan Technological University for technical information, and a reviewer who brought Refi 5 to our attention.",

year = "1995",

month = mar,

doi = "10.1016/0010-2180(94)00102-X",

language = "English (US)",

volume = "100",

pages = "645--652",

journal = "Combustion and Flame",

issn = "0010-2180",

publisher = "Elsevier Inc.",

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AU - Eng, J. A.

AU - Zhu, D. L.

AU - Law, C. K.

N1 - Funding Information: This work has been sponsored by the Microgravity Combustion Program of NASA-Lewis, under the technical monitoring of Mr. Kurt Sack-steder. JAE also acknowledges the support by the Air Force Office of Scientific Research through an AFRAPT &Iir Force Research in Aero Propulsion Technology) traineeship. We thank Mr. J. B. Liu and Mr. C. J, Sung of Princeton University for their help in taking and ana&zing the jlame structure data, Professor Peck Cho of the Michigan Technological University for technical information, and a reviewer who brought Refi 5 to our attention.

PY - 1995/3

Y1 - 1995/3

N2 - A comprehensive computational and experimental study has been conducted on the structure and stabilization dynamics of the classical planar flame over a flat, porous burner. The specific issue addressed is the apparent dual response nature of the flat-burner flames in that previous studies have shown the existence of two flame speeds for either a given heat loss rate or a given flame standoff distance. The present study demonstrates that the flame response is actually unique when the flame burning rate is considered to be the independent variable, that the turning point behavior of the flame response is a manifestation of system nonmonotonicity rather than extinction, and that the flat-burner flame does not appear to possess distinct extinction states. Results obtained from computational simulation of the flame structure with detailed transport and chemistry agree well with the experimental temperature and major species profiles determined through laser Raman spectroscopy.

AB - A comprehensive computational and experimental study has been conducted on the structure and stabilization dynamics of the classical planar flame over a flat, porous burner. The specific issue addressed is the apparent dual response nature of the flat-burner flames in that previous studies have shown the existence of two flame speeds for either a given heat loss rate or a given flame standoff distance. The present study demonstrates that the flame response is actually unique when the flame burning rate is considered to be the independent variable, that the turning point behavior of the flame response is a manifestation of system nonmonotonicity rather than extinction, and that the flat-burner flame does not appear to possess distinct extinction states. Results obtained from computational simulation of the flame structure with detailed transport and chemistry agree well with the experimental temperature and major species profiles determined through laser Raman spectroscopy.

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JO - Combustion and Flame

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ER -

On the structure, stabilization, and dual response of flat-burner flames

Abstract

All Science Journal Classification (ASJC) codes

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