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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.8
- 수록면
- 49 - 55 (7page)
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이 논문의 연구 히스토리 (5)
2015
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초록· 키워드
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The pumped storage plant operates with quick change of the discharge as well as quick changes between pump mode and turbine mode. This study focuses on the cavitation analysis of a pump-turbine model because in turbo-machinery, cavitation can reduce the performance and shorten service life. The pump-turbine model system consists of 7 blades, 20 stay vanes (including tongue) and 20 guide vanes. This study adopts the Rayleigh-Plesset model as a cavitation model, which illustrates cavitation by using the air volume fraction method. The pump mode and turbine mode at the operating condition of partial loading, normal and excessive loading are analyzed to investigate the cavitation performance of the pump-turbine. It was observed that this pump-turbine design showed very good cavitation characteristics with no cavitation bubbles in all operating conditions. Overall value of air volume fraction of both mode at different operating condition are lower than 1, which confirms low possibility of cavitation occurrence at current situation.
목차
ABSTRACT
1. Introduction
2. Pump-turbine model and Numerical methods
3. Results and Discussion
4. Conclusions
References
참고문헌 (8)
참고문헌 신청
[학술지(정기간행물)] - Grein, H. K. / 1975 / Commissioning Problems of A Large Pump Turbine / Water power and dam construction 12 (457)
[학술지(정기간행물)] - Kerschberger, P. / 2010 / Hydraulic Development of High Specific-speed Pump-turbines by Means of an Inverse Design Method, Numerical Flow-Simulation (CFD) and Model Testing / IOP Conf. Series: Earth and Environmental Science 12 (012039)
[학술지(정기간행물)] - Liu, J. T. / 2012 / Numerical Investigation of the Hump Charactertistic of Pump-turbine Based on an Improved Cavitation Model / Jour. Computers & Fluids : 105 ~ 111
[학술지(정기간행물)] - Wang, X. / 2014 / 3D Inverse Design and Performance Investigation of a Pump- Turbine Runner / Transactions of the Chinese Society for Agricultural Machinery 45 (12)
[학술지(정기간행물)] - Jintao Liu / 2013 / Three-dimensional flow simulation of transient power interruption process of a prototype pump-turbine at pump mode / Journal of Mechanical Science and Technology 27 (5) : 1305 ~ 1312
[학술지(정기간행물)] - Kerschberger, P. / 2010 / Hydraulic Development of High Specific-speed Pump-turbines by Means of an Inverse Design Method, Numerical Flow-Simulation (CFD) and Model Testing / IOP Conf. Series: Earth and Environmental Science 12 (012039)
[학술지(정기간행물)] - Liu, J. T. / 2012 / Numerical Investigation of the Hump Charactertistic of Pump-turbine Based on an Improved Cavitation Model / Jour. Computers & Fluids : 105 ~ 111
[학술지(정기간행물)] - Wang, X. / 2014 / 3D Inverse Design and Performance Investigation of a Pump- Turbine Runner / Transactions of the Chinese Society for Agricultural Machinery 45 (12)
[학술지(정기간행물)] - Jintao Liu / 2013 / Three-dimensional flow simulation of transient power interruption process of a prototype pump-turbine at pump mode / Journal of Mechanical Science and Technology 27 (5) : 1305 ~ 1312
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UCI(KEPA) : I410-ECN-0101-2016-554-001790845