지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2012.5
- 수록면
- 140 - 148 (9page)
이용수
초록· 키워드
오류제보하기
A understanding of diesel spray characteristics is important to improve the efficiency of diesel engine. Simulations of diesel spray combustion in constant chamber instead of the simulation of diesel engine are still essential to evaluate the effect of different fuel because of its simplicity. Engine Combustion Network (ECN) provides useful experimental data about diesel spray characteristic in constant chamber to simulation of n-heptane spray characteristics. To simulate these data, Conditional Moment closure (CMC) which is the turbulent diffusion combustion model is adopted and combined with OpenFOAM code to provide conditional flame structure to determine the mean state variable, instead of the mean reaction rate. An independent transport equation is solved for each flame group with equal mass of sequentially evaporating fuel vapor. In this paper, CMC code calculate the ECN data to show suitability of CMC model at diesel spray combustion and dependency of the number of flame group. OpenFOAM code simulates the spray combustion phenomena and calculates the Ignition delay and Lift off length at different conditions of ambient oxygen concentration and temperature. Result shows that the CMC model with multiple flame histories can be applied to the diesel spray combustion by comparing the ignition delay and lift off length.
목차
Abstract
1. 서론
2. 물리적 모델
3. 실험 조건
4. 계산 결과
4. 결론
References
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UCI(KEPA) : I410-ECN-0101-2014-556-001323264