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

952409

10/01/1995

Event
1995 SAE International Fall Fuels and Lubricants Meeting and Exhibition
Authors Abstract
Content
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.
Meta TagsDetails
DOI
https://doi.org/10.4271/952409
Pages
17
Citation
Ting, D., Checkel, M., and Johansson, B., "The Importance of High-Frequency, Small-Eddy Turbulence in Spark Ignited, Premixed Engine Combustion," SAE Technical Paper 952409, 1995, https://doi.org/10.4271/952409.
Additional Details
Publisher
Published
Oct 1, 1995
Product Code
952409
Content Type
Technical Paper
Language
English