Multizone 모델을 이용한 직접분사식 디젤엔진 성능 예측에 관한 연구

다국어 초록 (Multilingual Abstract)

A model for the prediction of combustion and exhaust emissions of DI diesel engine has been formulated and developed. This model is a quasi-dimensional phenomenological one and is based on multi-zone combustion modelling concept. This model is developed based on the concept of Hiroyasu's multizone combustion model. It takes nozzle injection (spray) parameters, induction swirl into consideration and the models of zone velocity, air entrainment, fuel droplet evaporation and mixture combustion are upgraded. Various parameters, such as cylinder pressure, heat release rate, NOx and soot emission, and these parameters in the zone are simulated. The results are compared with the experimental ones, too.