Flame front configuration of turbulent premixed flames

The present study is performed to explore dependence of the wrinkle scale of propane-air turbulent premixed flames on the characteristics of turbulence in the nonreacting flow burner size, and mixture ratio. The wrinkle scales are examined and expressed in the frequency distribution of the radii of...

Full description

Saved in:
Bibliographic Details
Published in:Combustion and flame 1998-02, Vol.112 (3), p.293-301
Main Authors: Furukawa, Junichi, Maruta, Kaoru, Hirano, Toshisuke
Format: Article
Language:English
Subjects:
Applied sciences
Combustion of gaseous fuels
Combustion. Flame
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Theoretical studies. Data and constants. Metering
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The present study is performed to explore dependence of the wrinkle scale of propane-air turbulent premixed flames on the characteristics of turbulence in the nonreacting flow burner size, and mixture ratio. The wrinkle scales are examined and expressed in the frequency distribution of the radii of flame front curvatures. The average wrinkle scale depends not only on the characteristics of turbulence in the nonreacting flow but also on burner diameter and mixture ratio. The average wrinkle scale of a lean propane-air flame is larger than those of the near stoichiometric and rich flames. The smallest wrinkle scale of turbulent premixed flame is in the range of 0.75–1.0 mm, which is much larger than the Kolmogorov scale of turbulence in the nonreacting flow.
ISSN:0010-2180
1556-2921
DOI:10.1016/S0010-2180(97)00127-2