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자료유형
학술대회자료
저자정보
저널정보
한국자동차공학회 한국자동차공학회 Workshop 한국자동차공학회 2005년 워크샵(대마도)
발행연도
2005.7
수록면
68 - 82 (15page)

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Spray formation mechanism of a diesel spray and its combustion process were reviewed. Spray formation mechanism of the diesel spray was controlled by a cavitation inside an injection nozzle. The Sauter mean diameter of a diesel spray became small when the cavitation occurred in the nozzle and it resulted in a complete spray. The empirical equations of the Sauter mean diameter were shown with the discussion of the cavitation. The spray tip penetrations of free and wall impingement sprays were introduced with the equations. The spray tip penetration was discussed with air entrainment process. Impingement spray was discussed with penetration and adhering fuel on the wall. High pressure injection spray was introduced with its spray characteristics. Spray-to spray interaction was clearly shown by many photographs to propose a new spray system. Evaporation process on an impingement wall was duscused. Ignition delay and the empirical equations of it were reviewed. The ignition delay was greatly affected by the spray movement and surrounding conditions. Wall and residual gas effects on the ignition delay were reviewed. The OH flame kernel and hot flame kernel observed at the ignition of impingement spray were explained. Alos, effect of injection pressure and effect of wall impingement on flame development process was explained.

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ABSTRACT
1. INTRODUCTION
2. CONTROL FACTORS FOR DIESEL COMBUSTION
3. DIESEL SPRAY
4. MIXING PROCESSES OF VAIOUS SPRAYS
5. COMBUSTION OF DIESEL SPRAY
6. SUMMARIES
References

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