The influence of reynolds number on soot concentration in turbulent non-premixed jet flames

S. M. Mahmoud; G. J. Nathan; Z. T. Alwahabi; Z. W. Sun; P. R. Medwell; B. B. Dally

The influence of reynolds number on soot concentration in turbulent non-premixed jet flames

S. M. Mahmoud, G. J. Nathan, Z. T. Alwahabi, Z. W. Sun, P. R. Medwell, B. B. Dally

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Soot volume fraction (SVF) was measured in six attached turbulent non-premixed jet flames of a C2H4-H2-N2 fuel mixture using the Laser-Induced Incandescence (LII) technique. The six flames comprise two sets with exit strain rates of 4100 and 7500 s-1, and one individual flame with an exit strain rate of 12,900 s-1. Within each set, the exit Reynolds number was changed both by varying the jet diameter and the fuel exit velocity. Measurements of the mean and radially-integrated SVF reveal a weak inverse dependence on the exit Reynolds number. The total soot yield was also found to be a strong function of both the exit strain and the flame volume, but to be almost independent of the exit Reynolds number. A non-negligible effect of buoyancy on SVF was also deduced from the global correlations.

Original language	English (US)
Title of host publication	11th Asia-Pacific Conference on Combustion, ASPACC 2017
Publisher	Combustion Institute
State	Published - Jan 1 2017
Externally published	Yes

Cite this

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title = "The influence of reynolds number on soot concentration in turbulent non-premixed jet flames",

abstract = "Soot volume fraction (SVF) was measured in six attached turbulent non-premixed jet flames of a C2H4-H2-N2 fuel mixture using the Laser-Induced Incandescence (LII) technique. The six flames comprise two sets with exit strain rates of 4100 and 7500 s-1, and one individual flame with an exit strain rate of 12,900 s-1. Within each set, the exit Reynolds number was changed both by varying the jet diameter and the fuel exit velocity. Measurements of the mean and radially-integrated SVF reveal a weak inverse dependence on the exit Reynolds number. The total soot yield was also found to be a strong function of both the exit strain and the flame volume, but to be almost independent of the exit Reynolds number. A non-negligible effect of buoyancy on SVF was also deduced from the global correlations.",

author = "Mahmoud, {S. M.} and Nathan, {G. J.} and Alwahabi, {Z. T.} and Sun, {Z. W.} and Medwell, {P. R.} and Dally, {B. B.}",

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year = "2017",

month = jan,

day = "1",

language = "English (US)",

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TY - GEN

T1 - The influence of reynolds number on soot concentration in turbulent non-premixed jet flames

AU - Mahmoud, S. M.

AU - Nathan, G. J.

AU - Alwahabi, Z. T.

AU - Sun, Z. W.

AU - Medwell, P. R.

AU - Dally, B. B.

N1 - Generated from Scopus record by KAUST IRTS on 2022-09-12

PY - 2017/1/1

Y1 - 2017/1/1

N2 - Soot volume fraction (SVF) was measured in six attached turbulent non-premixed jet flames of a C2H4-H2-N2 fuel mixture using the Laser-Induced Incandescence (LII) technique. The six flames comprise two sets with exit strain rates of 4100 and 7500 s-1, and one individual flame with an exit strain rate of 12,900 s-1. Within each set, the exit Reynolds number was changed both by varying the jet diameter and the fuel exit velocity. Measurements of the mean and radially-integrated SVF reveal a weak inverse dependence on the exit Reynolds number. The total soot yield was also found to be a strong function of both the exit strain and the flame volume, but to be almost independent of the exit Reynolds number. A non-negligible effect of buoyancy on SVF was also deduced from the global correlations.

AB - Soot volume fraction (SVF) was measured in six attached turbulent non-premixed jet flames of a C2H4-H2-N2 fuel mixture using the Laser-Induced Incandescence (LII) technique. The six flames comprise two sets with exit strain rates of 4100 and 7500 s-1, and one individual flame with an exit strain rate of 12,900 s-1. Within each set, the exit Reynolds number was changed both by varying the jet diameter and the fuel exit velocity. Measurements of the mean and radially-integrated SVF reveal a weak inverse dependence on the exit Reynolds number. The total soot yield was also found to be a strong function of both the exit strain and the flame volume, but to be almost independent of the exit Reynolds number. A non-negligible effect of buoyancy on SVF was also deduced from the global correlations.

UR - http://www.scopus.com/inward/record.url?scp=85046654198&partnerID=8YFLogxK

M3 - Conference contribution

BT - 11th Asia-Pacific Conference on Combustion, ASPACC 2017

PB - Combustion Institute

ER -

The influence of reynolds number on soot concentration in turbulent non-premixed jet flames

Abstract

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