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포트분사식 가솔린엔진에서 연료분사전략이 Wall Film 생성에 미치는 영향 연구
이지영 ( Ziyoung Lee ),최종휘 ( Jonghui Choi ),장지환 ( Jihwan Jang ),박성욱 ( Sungwook Park ) 한국액체미립화학회 2018 한국액체미립화학회지 Vol.23 No.1
Fuel wall film effects power output and cycle deviation by changing the amount of fuel flowing into cylinder in PFI gasoline engines. Reduction of wall film can reduce fuel consumption and improve combustion stability. In this research, the effects of injection strategies including injection pressure and dual injection system is investigated for reducing wall film formation. The CONVERGE software is used for numerical analysis tool and O’Rourke film splash model was used for wall film prediction model. Compared with the reference case wall film decreased with increase of injection pressures, and the film formation reduced when the dual injection system was used.