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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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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.18 No.1
- 발행연도
- 2025.3
- 수록면
- 58 - 75 (18page)
- DOI
- 10.5293/IJFMS.2025.18.1.058
이용수
초록· 키워드
오류제보하기
Gravitational vortex type water turbines mainly consist of a tank and a runner, and are applicable to low head and small flow rates. In this study, a one-dimensional design method is proposed to establish a hydraulic design method for this type of turbine, in which the flow in the tank is assumed to be a free vortex, and the shapes of the volute tank and runner are determined from the given specifications. In this design method, other runner parameters vary greatly depending on the value of runner outer diameter. Based on this design method, three types of water turbines with different runner diameters were designed, and their performance and flow fields were investigated by free surface flow analysis and through experiments. As a result, the water turbine with the largest runner outer diameter had the lowest tank outlet loss and tank loss, resulting in a slightly smaller calculated effective head than the design value, but the calculated values of the flow at the blade inlet and outlet were relatively close to the design value. Therefore, the water turbine with the largest runner outer diameter demonstrated the highest theoretical head, the highest turbine output, and the highest turbine efficiency.
목차
Abstract
1. Introduction
2. Hydraulic Design Method
3. Numerical Analysis Method
4. Results and Discussions
5. Experimental Verification
6. Conclusions
References
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