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The Importance of High-Frequency, Small-Eddy Turbulence in Spark Ignited, Premixed Engine Combustion

Ting, David S-K; Checkel, M. David and Johansson, Bengt LU (1995) SAE Fuels & Lubricants Meeting and Exposition In SAE Technical Paper Series
Abstract
The different roles played by small and large

eddies in engine combustion were studied.

Experiments compared natural gas combustion in a

converted, single cylinder Volvo TD 102 engine and in

a 125 mm cubical cell. Turbulence is used to enhance

flame growth, ideally giving better efficiency and

reduced cyclic variation. Both engine and test cell

results showed that flame growth rate correlated best

with the level of high frequency, small eddy turbulence.

The more effective, small eddy turbulence also tended

to lower cyclic variations. Large scales and bulk flows

convected the flame relative to cool surfaces and were

most important to... (More)
The different roles played by small and large

eddies in engine combustion were studied.

Experiments compared natural gas combustion in a

converted, single cylinder Volvo TD 102 engine and in

a 125 mm cubical cell. Turbulence is used to enhance

flame growth, ideally giving better efficiency and

reduced cyclic variation. Both engine and test cell

results showed that flame growth rate correlated best

with the level of high frequency, small eddy turbulence.

The more effective, small eddy turbulence also tended

to lower cyclic variations. Large scales and bulk flows

convected the flame relative to cool surfaces and were

most important to the initial flame kernel. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Flame Speed, LDV, Turbulence, Flame Propagation
in
SAE Technical Paper Series
pages
15 pages
publisher
Society of Automotive Engineers
conference name
SAE Fuels & Lubricants Meeting and Exposition
external identifiers
  • scopus:84877387223
ISSN
0148-7191
language
English
LU publication?
yes
id
857ec01a-8705-4045-8ce0-4e9e7bd473a6 (old id 622691)
alternative location
http://www.sae.org/technical/papers/952409
date added to LUP
2007-11-23 15:21:04
date last changed
2017-09-10 04:39:19
@inproceedings{857ec01a-8705-4045-8ce0-4e9e7bd473a6,
  abstract     = {The different roles played by small and large<br/><br>
eddies in engine combustion were studied.<br/><br>
Experiments compared natural gas combustion in a<br/><br>
converted, single cylinder Volvo TD 102 engine and in<br/><br>
a 125 mm cubical cell. Turbulence is used to enhance<br/><br>
flame growth, ideally giving better efficiency and<br/><br>
reduced cyclic variation. Both engine and test cell<br/><br>
results showed that flame growth rate correlated best<br/><br>
with the level of high frequency, small eddy turbulence.<br/><br>
The more effective, small eddy turbulence also tended<br/><br>
to lower cyclic variations. Large scales and bulk flows<br/><br>
convected the flame relative to cool surfaces and were<br/><br>
most important to the initial flame kernel.},
  author       = {Ting, David S-K and Checkel, M. David and Johansson, Bengt},
  booktitle    = {SAE Technical Paper Series},
  issn         = {0148-7191},
  keyword      = {Flame Speed,LDV,Turbulence,Flame Propagation},
  language     = {eng},
  pages        = {15},
  publisher    = {Society of Automotive Engineers},
  title        = {The Importance of High-Frequency, Small-Eddy Turbulence in Spark Ignited, Premixed Engine Combustion},
  year         = {1995},
}