Diesel Spray의 점화와 연소 특성 해석

다국어 초록 (Multilingual Abstract)

The present study is mainly motivated to numerically simulate the auto ignition and combustion process of a diesel spray in RCM and effects of design parameters on combustion and engine performance in the DI diesel engine using EGR. In case of the burning spray in RCM, special emphasis is given to the auto ignition process coupled with the fluid mechanics and chemical reaction. Computations are carried out for a wide range of 'operating condition in terms of temperature, concentration of oxygen and carbon dioxide of the intake gas in the DI diesel engine. Numerical results indicate that the mixing process along the edges of spray jet has a crucial role for autoigni-tion and combustion process. Temperature and concentration of O₂ and CO₂ of intake gas significantly influence the combustion characteristics and engine performance in the diesel/EGR environment.