Details
| Original language | English |
|---|---|
| Title of host publication | VDI Berichte |
| Pages | 161-167 |
| Number of pages | 7 |
| Edition | 1988 |
| Publication status | Published - 2007 |
| Externally published | Yes |
Publication series
| Name | VDI Berichte |
|---|---|
| Number | 1988 |
| ISSN (Print) | 0083-5560 |
Abstract
For the calculation of lean turbulent premixed flames, the recently developed algebraic flame surface wrinkling (AFSW) model was extended to lean hydrogen/methane flames for varied pressure up to 9 bar. The comparison with experimental Bunsen flame data from Orleans confirms that molecular transport processes are showing a significant role, as the Lewis number is explicitly included in the model for the mean reaction rate. A new approach is proposed to determine an effective Lewis number for the hydrogen/methane fuel mixture, which is based on the fuel mass diffusivities. The basic idea behind this approach is related to the leading edge concept, promoted by Lipatnikov and Chomiak, according to which the propagation for highly turbulent flames essentially depends on the local conditions of the positively curved leading edges directing towards unburned premixed mixture.
ASJC Scopus subject areas
- Engineering(all)
- General Engineering
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VDI Berichte. 1988. ed. 2007. p. 161-167 (VDI Berichte; No. 1988).
Research output: Chapter in book/report/conference proceeding › Contribution to book/anthology › Research › peer review
}
TY - CHAP
T1 - Numerical simulation of turbulent lean hydrogen/hydrocarbon premixed flames
AU - Aluri, N. K.
AU - Manickam, B.
AU - Dinkelacker, F.
AU - Muppala, S. P.R.
PY - 2007
Y1 - 2007
N2 - For the calculation of lean turbulent premixed flames, the recently developed algebraic flame surface wrinkling (AFSW) model was extended to lean hydrogen/methane flames for varied pressure up to 9 bar. The comparison with experimental Bunsen flame data from Orleans confirms that molecular transport processes are showing a significant role, as the Lewis number is explicitly included in the model for the mean reaction rate. A new approach is proposed to determine an effective Lewis number for the hydrogen/methane fuel mixture, which is based on the fuel mass diffusivities. The basic idea behind this approach is related to the leading edge concept, promoted by Lipatnikov and Chomiak, according to which the propagation for highly turbulent flames essentially depends on the local conditions of the positively curved leading edges directing towards unburned premixed mixture.
AB - For the calculation of lean turbulent premixed flames, the recently developed algebraic flame surface wrinkling (AFSW) model was extended to lean hydrogen/methane flames for varied pressure up to 9 bar. The comparison with experimental Bunsen flame data from Orleans confirms that molecular transport processes are showing a significant role, as the Lewis number is explicitly included in the model for the mean reaction rate. A new approach is proposed to determine an effective Lewis number for the hydrogen/methane fuel mixture, which is based on the fuel mass diffusivities. The basic idea behind this approach is related to the leading edge concept, promoted by Lipatnikov and Chomiak, according to which the propagation for highly turbulent flames essentially depends on the local conditions of the positively curved leading edges directing towards unburned premixed mixture.
UR - http://www.scopus.com/inward/record.url?scp=34948833708&partnerID=8YFLogxK
M3 - Contribution to book/anthology
AN - SCOPUS:34948833708
SN - 3180919884
SN - 9783180919881
T3 - VDI Berichte
SP - 161
EP - 167
BT - VDI Berichte
ER -