Turbulent flame propagation in a spark ignition engine with an unscavenged horizontal prechamber

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:5679228

Ryu, H; Asanuma, T

To obtain a better understanding of the effect of torch nozzle area on the turbulent flame propagation in a spark ignition engine with an unscavenged prechamber, the combustion characteristics are analyzed from ensemble-averaged pressure diagrams, and the turbulent flame propagation in both the pre- and main chambers are observed using a high-speed camera with image-processing. Consequently, the effect of torch nozzle on the flame propagation pattern become more clear. Both the maps of calculated isotherm and measured flame front are found to be in reasonable agreement, and the isotherm area fraction and flame area fraction also show a similar tendency.

• OSTI ID: 5679228
• Report Number(s): CONF-8810120-
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330101* -- Internal Combustion Engines-- Spark-Ignition
CHEMICAL REACTION KINETICS
COMBUSTION CHAMBERS
COMBUSTION KINETICS
ENGINES
FLAME PROPAGATION
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
KINETICS
MATHEMATICAL MODELS
REACTION KINETICS
SPARK IGNITION ENGINES
TURBULENCE