Combined effects of curvature, radiation, and stretch on the extinction of premixed tubular flames

Zheng Chen; Yiguang Ju

doi:10.1016/j.ijheatmasstransfer.2008.05.002

Combined effects of curvature, radiation, and stretch on the extinction of premixed tubular flames

Zheng Chen, Yiguang Ju

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

25 Scopus citations

Abstract

The combined effects of flame curvature, radiation, and stretch on the extinction of premixed tubular flames are investigated by using the large-activation-energy asymptotic method with a non-linear radiation model. A general expression for flame speed, flame temperature and extinction limits is obtained and it is used to study the radiation and flame curvature coupling at different Lewis numbers. The results show that the coupling between radiation and flame curvature leads to multiple flame bifurcations and extinction limits. Furthermore, both the stretch and radiation extinction limits are found to be greatly affected by flame curvature.

Original language	English (US)
Pages (from-to)	6118-6125
Number of pages	8
Journal	International Journal of Heat and Mass Transfer
Volume	51
Issue number	25-26
DOIs	https://doi.org/10.1016/j.ijheatmasstransfer.2008.05.002
State	Published - Dec 2008

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

Keywords

Extinction
Flame curvature
Flame stretch
Premixed tubular flame
Radiation

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10.1016/j.ijheatmasstransfer.2008.05.002

Cite this

@article{71919563ae4b4355a6894ab2f809e334,

title = "Combined effects of curvature, radiation, and stretch on the extinction of premixed tubular flames",

abstract = "The combined effects of flame curvature, radiation, and stretch on the extinction of premixed tubular flames are investigated by using the large-activation-energy asymptotic method with a non-linear radiation model. A general expression for flame speed, flame temperature and extinction limits is obtained and it is used to study the radiation and flame curvature coupling at different Lewis numbers. The results show that the coupling between radiation and flame curvature leads to multiple flame bifurcations and extinction limits. Furthermore, both the stretch and radiation extinction limits are found to be greatly affected by flame curvature.",

keywords = "Extinction, Flame curvature, Flame stretch, Premixed tubular flame, Radiation",

author = "Zheng Chen and Yiguang Ju",

note = "Funding Information: This work was partially supported by the NASA research grant, the American Chemistry Society PRF research fund (PRF 43460-AC5), and the DOE (DE-FG26-06NT42716) coal research grant. Fruitful discussions with Dr. Takeshi Yokomori at Keio University were greatly appreciated. ",

year = "2008",

month = dec,

doi = "10.1016/j.ijheatmasstransfer.2008.05.002",

language = "English (US)",

volume = "51",

pages = "6118--6125",

journal = "International Journal of Heat and Mass Transfer",

issn = "0017-9310",

publisher = "Elsevier Ltd",

number = "25-26",

}

TY - JOUR

T1 - Combined effects of curvature, radiation, and stretch on the extinction of premixed tubular flames

AU - Chen, Zheng

AU - Ju, Yiguang

N1 - Funding Information: This work was partially supported by the NASA research grant, the American Chemistry Society PRF research fund (PRF 43460-AC5), and the DOE (DE-FG26-06NT42716) coal research grant. Fruitful discussions with Dr. Takeshi Yokomori at Keio University were greatly appreciated.

PY - 2008/12

Y1 - 2008/12

N2 - The combined effects of flame curvature, radiation, and stretch on the extinction of premixed tubular flames are investigated by using the large-activation-energy asymptotic method with a non-linear radiation model. A general expression for flame speed, flame temperature and extinction limits is obtained and it is used to study the radiation and flame curvature coupling at different Lewis numbers. The results show that the coupling between radiation and flame curvature leads to multiple flame bifurcations and extinction limits. Furthermore, both the stretch and radiation extinction limits are found to be greatly affected by flame curvature.

AB - The combined effects of flame curvature, radiation, and stretch on the extinction of premixed tubular flames are investigated by using the large-activation-energy asymptotic method with a non-linear radiation model. A general expression for flame speed, flame temperature and extinction limits is obtained and it is used to study the radiation and flame curvature coupling at different Lewis numbers. The results show that the coupling between radiation and flame curvature leads to multiple flame bifurcations and extinction limits. Furthermore, both the stretch and radiation extinction limits are found to be greatly affected by flame curvature.

KW - Extinction

KW - Flame curvature

KW - Flame stretch

KW - Premixed tubular flame

KW - Radiation

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U2 - 10.1016/j.ijheatmasstransfer.2008.05.002

DO - 10.1016/j.ijheatmasstransfer.2008.05.002

M3 - Article

AN - SCOPUS:55749086215

SN - 0017-9310

VL - 51

SP - 6118

EP - 6125

JO - International Journal of Heat and Mass Transfer

JF - International Journal of Heat and Mass Transfer

IS - 25-26

ER -

Combined effects of curvature, radiation, and stretch on the extinction of premixed tubular flames

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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