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
- 1,098 - 1,102 (5page)
이용수
초록· 키워드
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In real turbine blades, the direction of secondary flow channel is generally perpendicular to the direction of main flow. Thus, this study performs the numerical analysis to investigate the effects of the direction of secondary flow on the film cooling effectiveness of double-jet film cooling. The secondary flow is fed from two different directions, one is parallel and the other is normal to the direction of main stream. The blowing rate is 1 and the lateral injection angle is 22.5°. The numerical analysis is performed by using CFX, and the k-ε model is used for the turbulence model. When the secondary flow is supplied from the normal channel, blowing rates of both holes are different. Blowing rate of first hole is bigger than blowing rate of second hole. However, both blowing rates of holes are similar in the parallel secondary flow channel case. The asymmetrical film cooling effectiveness is obtained from the normal channel case because of different blowing rate. Similar blowing rates in the parallel channel case make anti-kidney vortex well, so the laterally averaged film cooling effectiveness of the parallel channel case is bigger than of the normal channel case.
목차
Abstract
1. 서론
2. 수치해석방법
3. 결과 및 고찰
4. 결론
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UCI(KEPA) : I410-ECN-0101-2014-550-000189288