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
- 2012.11
- 수록면
- 80 - 86 (7page)
이용수
초록· 키워드
오류제보하기
Diesel engine injector is used for spraying the fuel into the cylinder chamber. Complex phenomenon like cavitation occurs from small scale of injector nozzle and high pressurized fast flow field. Flow inside the nozzle affects whole engine performance including combustion and exhaust process, therefore understanding the flow inside the injector nozzle is very important.
In the injector, the needle moves in vertical direction and controls the injection. Flow field inside the nozzle and nozzle outlet characteristics will be varied from the position of the needle. Because of small nozzle size and complex flow field, experimental approach is difficult. In this study, by using commercial code and mesh deformation technique, unsteady flow inside the nozzle and nozzle outlet characteristics can be analyzed. As a result, the complex flow field is placed inside the nozzle and especially, cavitation occurs at the upper side of nozzle inlet from the pressure drop below the vapor pressure. The characteristics at nozzle inside and outlet are varied as needle moves up and down.
Subsequent processes, combustion and exhaust, can be predicted accurately by using the way discussed in this paper and to conclude, whole engine performance can be predicted and improved.
In the injector, the needle moves in vertical direction and controls the injection. Flow field inside the nozzle and nozzle outlet characteristics will be varied from the position of the needle. Because of small nozzle size and complex flow field, experimental approach is difficult. In this study, by using commercial code and mesh deformation technique, unsteady flow inside the nozzle and nozzle outlet characteristics can be analyzed. As a result, the complex flow field is placed inside the nozzle and especially, cavitation occurs at the upper side of nozzle inlet from the pressure drop below the vapor pressure. The characteristics at nozzle inside and outlet are varied as needle moves up and down.
Subsequent processes, combustion and exhaust, can be predicted accurately by using the way discussed in this paper and to conclude, whole engine performance can be predicted and improved.
목차
Abstract
1. 서론
2. 해석 방법
3. 해석 결과
4. 결론
References
참고문헌 (0)
참고문헌 신청이 논문의 저자 정보
이 논문과 함께 이용한 논문
인젝터 노즐 홀 직경의 변화에 따른 DME 커먼레일 연료 분사 시스템의 분무 특성에 관한 연구 II
이세준
,
임옥택
한국자동차공학회논문집
2013
.07
PBM(Population balance model)을 이용한 고로 내 입자 적하 거동 해석
황동하
,
백제현
,
최응수
외 1명
한국전산유체공학회 학술대회논문집
2011
.11
CFD를 이용한 축류 유체 터빈 설계 : 블레이드 수에 따른 성능 연구
임형섭
,
김성완
,
백제현
한국전산유체공학회 학술대회논문집
2011
.05
초소형 가스 터빈용 저널 베어링 내 유동장 수치해석을 통한 응답특성 분석
서준혁
,
백제현
한국전산유체공학회 학술대회논문집
2011
.05
고분자전해질 LbL multilayering 처리된 섬유와 형광증백제와의 반응성
심규정
,
이성린
,
진성민
외 2명
펄프·종이기술
2010
.12
최근 본 자료
댓글(0)
0
UCI(KEPA) : I410-ECN-0101-2014-556-000417381