Development of a coherent flamelet model for a sparkignited turbulent premixed flame in a closed vessel
Abstract
Threedimensional calculations of turbulent combustion which include ignition, laminar and turbulent flame propagation and quenching at the wall are performed by the coherent flamelet model (CFM). The existing CFMs in the literature are tested and new forms are proposed. A mean stretch factor I{sub 0} is introduced to consider the stretch and curvature effects of turbulence. Quenching at the wall is simulated by the simple wall flux model (SWFM) of the flame surface density. Two forms of the flame production term, CFM1 and CFM2, are tested to show the predictive capability of the CFM for turbulent burning velocity. CFM1 has the flame production term given by the average rate of strain proposed by Cant et al., while CFM2 has the production term proportional to the rms turbulent velocity. It turns out that the turbulent burning velocity of CFM2 is in reasonable agreement with the data of Checkel and Thomas and Bradley`s correlation with variation of the Karlovitz number, rms turbulent velocity, and integral length scale.
 Authors:

 Pohang Univ. of Science and Technology, Kyungbuk (Korea, Republic of). Mechanical Engineering Dept.
 Publication Date:
 OSTI Identifier:
 669938
 Resource Type:
 Journal Article
 Journal Name:
 Combustion and Flame
 Additional Journal Information:
 Journal Volume: 114; Journal Issue: 34; Other Information: PBD: AugSep 1998
 Country of Publication:
 United States
 Language:
 English
 Subject:
 33 ADVANCED PROPULSION SYSTEMS; 02 PETROLEUM; SPARK IGNITION ENGINES; COMBUSTION KINETICS; FLAMES; MATHEMATICAL MODELS; TURBULENT FLOW; FLAME PROPAGATION; QUENCHING
Citation Formats
Choi, C R, and Huh, K Y. Development of a coherent flamelet model for a sparkignited turbulent premixed flame in a closed vessel. United States: N. p., 1998.
Web. doi:10.1016/S00102180(97)001946.
Choi, C R, & Huh, K Y. Development of a coherent flamelet model for a sparkignited turbulent premixed flame in a closed vessel. United States. doi:10.1016/S00102180(97)001946.
Choi, C R, and Huh, K Y. Sat .
"Development of a coherent flamelet model for a sparkignited turbulent premixed flame in a closed vessel". United States. doi:10.1016/S00102180(97)001946.
@article{osti_669938,
title = {Development of a coherent flamelet model for a sparkignited turbulent premixed flame in a closed vessel},
author = {Choi, C R and Huh, K Y},
abstractNote = {Threedimensional calculations of turbulent combustion which include ignition, laminar and turbulent flame propagation and quenching at the wall are performed by the coherent flamelet model (CFM). The existing CFMs in the literature are tested and new forms are proposed. A mean stretch factor I{sub 0} is introduced to consider the stretch and curvature effects of turbulence. Quenching at the wall is simulated by the simple wall flux model (SWFM) of the flame surface density. Two forms of the flame production term, CFM1 and CFM2, are tested to show the predictive capability of the CFM for turbulent burning velocity. CFM1 has the flame production term given by the average rate of strain proposed by Cant et al., while CFM2 has the production term proportional to the rms turbulent velocity. It turns out that the turbulent burning velocity of CFM2 is in reasonable agreement with the data of Checkel and Thomas and Bradley`s correlation with variation of the Karlovitz number, rms turbulent velocity, and integral length scale.},
doi = {10.1016/S00102180(97)001946},
journal = {Combustion and Flame},
number = 34,
volume = 114,
place = {United States},
year = {1998},
month = {8}
}