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
- 학술저널
- 저자정보
- 저널정보
- 한국마린엔지니어링학회 Journal of Advanced Marine Engineering and Technology (JAMET) 한국마린엔지니어링학회지 제37권 제3호
- 발행연도
- 2013.5
- 수록면
- 274 - 281 (8page)
이용수
초록· 키워드
오류제보하기
The variable demand on the energy market requires a great flexibility in operating hydro turbines. However, Francis turbine operated at off-design conditions poses technical challenges related to large unsteady forces given by residual swirl and angular momentum. In order to improve the performance of a Francis turbine, the paper presents a numerical investigation of the 3D flow in the turbine at off-design conditions and discusses the influence of variable guide vane openings on the internal flow of a Francis turbine with the help of computational fluid dynamics. First, the internal flow characteristics of Francis turbine operated by varied guide vane angle at off design condition are computed and the optimal guide vane angle is obtained. Secondly, the Francis turbine is operated with guide vane number varies at the optimal guide vane angle. Finally, pressure contours and velocity distributions in the distributor are discussed and compared.
목차
Abstract
1. Introduction
2. Turbine model
3. Numerical Methods
4. Results and Discussion
5. Conclusions
Reference
참고문헌 (7)
참고문헌 신청
1. [학술대회논문] - V. Hasmatuchi / 2009 / Experimental investigation of a pump-turbine at off-design operating conditions / Proceedings of the 3rd International Association for Hydro-Environment Engineering and Research International Meeting of the Workgroup on Cavitation and Dynamic Problems in Hydraulic Machinery and Systems : 339 ~ 347
2. [학술지(정기간행물)] - R. Khare / 2010 / CFD approach for flow characteristics of hydraulics Francis turbine / International Journal of Engineering Science and Technology 2 (8) : 3824 ~ 3831
3. [학술대회논문] - S. Muntean / 2004 / Analysis of the GAMM Francis turThe bine distributor 3D flow for the whole operating range and optimization of the guide vane axis location / Proceedings of the 6th International Conference on Hydraulic Machinery and Hydrodynamics : 131 ~ 136
4. [학술지(정기간행물)] - S. Muntean / 2010 / Numerical analysis of the flow in the old Francis runner in order to define the refurbishment strategy / University Politehnica of Bucharest Scientific Bulletin, Series D 72 (1) : 117 ~ 124
5. [학술지(정기간행물)] - A. Alnaga / 2008 / Optimal design of hydraulic turbine distributor / World Scientific and Engineering Academy and Society Transactions on Fluid Mechanics 3 (2) : 175 ~ 185
2. [학술지(정기간행물)] - R. Khare / 2010 / CFD approach for flow characteristics of hydraulics Francis turbine / International Journal of Engineering Science and Technology 2 (8) : 3824 ~ 3831
3. [학술대회논문] - S. Muntean / 2004 / Analysis of the GAMM Francis turThe bine distributor 3D flow for the whole operating range and optimization of the guide vane axis location / Proceedings of the 6th International Conference on Hydraulic Machinery and Hydrodynamics : 131 ~ 136
4. [학술지(정기간행물)] - S. Muntean / 2010 / Numerical analysis of the flow in the old Francis runner in order to define the refurbishment strategy / University Politehnica of Bucharest Scientific Bulletin, Series D 72 (1) : 117 ~ 124
5. [학술지(정기간행물)] - A. Alnaga / 2008 / Optimal design of hydraulic turbine distributor / World Scientific and Engineering Academy and Society Transactions on Fluid Mechanics 3 (2) : 175 ~ 185
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