This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Development of a Flame Propagation Model for Si Internal Combustion Engines
Published May 21, 2003 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Spring Conference
Flame propagation in internal combustion engines involves very complicated phenomena, which are strongly affected by the engine speed and turbulence intensity in the chamber. The aim of this study was to develop a flame propagation model applicable to various engine operating conditions, including the engine speed and in-cylinder turbulence intensity. The Coherent Flamelet Model (CFM) has been improved by considering flame growth both in terms of the turbulent flame kernel and laminar flame kernel. The calculation results show the general tendency of flame propagation in SI engines, and a comparison of the measured and calculated heat release rates shows good agreement for various operating conditions.