Strand T.E. Experimental Investigation of Bulk Flame Quenching in a Direct-Injection Spark Ignition Engine

University of Wisconsin, Madison, 2001. 111 р. Master of Science (Mechanical Engineering)AbstractList of Figures
List of TablesGoals and objectives
Outline and overviewLiterature Review
DISI engines
Motivation for DISI research
DISI fundamentals
Historical development of the DISI engine
Problems with stratified combustion
Hydrocarbon emissions:
Piston wetting -vs- Bulk flame quenching
Bulk flame quenching of the flame at the lean periphery
Planar laser-induced fluorescence
LIF of OH
LIF of 3-pentanone
Planar laser-induced fluorescence in DISI enginesExperimental setup
Optically accessible engine
Laser system and optical assembly
Imaging system
Image correction procedureFlame structure visualizationConditions
Flame structure visualization
High load flame structure
Light load pre-combustion mixture distribution
Light load flame structure
Discussion
ConclusionsBulk quenching of the flameConditions
Bulk quenching
Bulk flame quenching – existence
Bulk flame quenching – effect of combustion phasing
Bulk flame quenching – effect of intake throttling
Discussion
ConclusionsConclusions
Appendix A Fractal conceptsBackground
Fractal fundamentals
Literature review
Fractal analysis
Validation of the method of calculating D
Flame structure analysis
Conclusions