LE1-2 A Prediction Formula for Heat Transfer Coefficient on Combustion Chamber Walls in Internal Combustion Engines : Investigation of Characteristic of Local Heat Transfer Coefficient by Three Dimensional Combustion Simulation(LE: Lubricants, Engines and Engine Components,General Session Papers)

Abstract

An accurate and robust equation for estimating instantaneous heat transfer coefficients has been developed. The equation has been derived from instantaneous surface temperature measurements on the combustion chamber wall of a direct-injection diesel engine. In a previous study, it was shown that the characteristics of the heat transfer coefficients inside and outside the cavity are different. In this study, the relationship between local combustion flame behavior and heat transfer coefficients has been investigated using 3D-CFD combustion simulation.