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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.13 No.1
- 발행연도
- 2020.3
- 수록면
- 103 - 113 (11page)
- DOI
- 10.5293/IJFMS.2020.13.1.103
이용수
초록· 키워드
오류제보하기
The paper studies the pulsation characteristics of the flow when operating a medium-scale hydrodynamic test bench with a Francis turbine. The pressure fluctuations measurements and flow structure visualization were performed for all operation modes of the hydraulic unit. To control and suppress pulsations in the flow path, a series of experiments on air injection to the hydraulic unit were carried out. Comparison of pressure pulsations for single-phase and two-phase flow experimentation has shown that for modes with maximum loads, the pressure pulsations can be reduced almost to a half by means of air injection. The effect of air injection is also studied with respect to the efficiency of the hydraulic turbine.
목차
Abstract
1. Introduction
2. Experimental test bench and measurements technique
3. Experimental results
4. Conclusions
References
참고문헌 (44)
참고문헌 신청
Nishi, M. / 1980 / Study on swirling flow and surge in an elbow type draft tube / IAHR Section Hydraulic Machinery, Equipment, and Cavitation 1:557~568
Dorfler, P. / 2013 / Flow-Induced Pulsation, and Vibration in Hydroelectric Machinery / Springer
Cassidy, J.J. / 1969 / Experimental study and analysis of draft tube surging
Falvey, H.T. / 1971 / Draft tube surges
Jonsson, P. P. / 2012 / Experimental investigation of a Kaplan draft tube – Part II : Off-design conditions / Applied Energy 94:71~83
Dorfler, P. / 2013 / Flow-Induced Pulsation, and Vibration in Hydroelectric Machinery / Springer
Cassidy, J.J. / 1969 / Experimental study and analysis of draft tube surging
Falvey, H.T. / 1971 / Draft tube surges
Jonsson, P. P. / 2012 / Experimental investigation of a Kaplan draft tube – Part II : Off-design conditions / Applied Energy 94:71~83
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