The importance of high-frequency, small-eddy turbulence in spark ignited, premixed engine combustion

David S.K. Ting; M. David Checkel; Bengt Johansson

doi:10.4271/952409

The importance of high-frequency, small-eddy turbulence in spark ignited, premixed engine combustion

David S.K. Ting^*, M. David Checkel, Bengt Johansson

^*Corresponding author for this work

Physical Sciences and Engineering

Research output: Contribution to conference › Paper › peer-review

10 Scopus citations

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 the initial flame kernel.

Original language	English (US)
DOIs	https://doi.org/10.4271/952409
State	Published - Dec 1 1995
Event	Fuels and Lubricants Meeting and Exposition - Toronto, ON, Canada Duration: Oct 16 1995 → Oct 19 1995

Other

Other	Fuels and Lubricants Meeting and Exposition
Country/Territory	Canada
City	Toronto, ON
Period	10/16/95 → 10/19/95

ASJC Scopus subject areas

Automotive Engineering
Safety, Risk, Reliability and Quality
Pollution
Industrial and Manufacturing Engineering

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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 the initial flame kernel.",

author = "Ting, {David S.K.} and Checkel, {M. David} and Bengt Johansson",

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AU - Ting, David S.K.

AU - Checkel, M. David

AU - Johansson, Bengt

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Y1 - 1995/12/1

N2 - 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.

AB - 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.

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U2 - 10.4271/952409

DO - 10.4271/952409

M3 - Paper

T2 - Fuels and Lubricants Meeting and Exposition

Y2 - 16 October 1995 through 19 October 1995

ER -

The importance of high-frequency, small-eddy turbulence in spark ignited, premixed engine combustion

Abstract

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ASJC Scopus subject areas

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