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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.17 No.4
- 발행연도
- 2024.12
- 수록면
- 218 - 237 (20page)
- DOI
- 10.5293/IJFMS.2024.17.4.218
이용수
초록· 키워드
오류제보하기
In this study, cavitation tests and cavitation CFD analysis were conducted to elucidate the mechanism of head reduction when cavitation occurs in a closed-type single blade centrifugal pump. In addition, the hydraulic loss during the cavitation process was evaluated, and the relationship with the vortex structure in the impeller in the point of no pressure change and at the head drop point was investigated. As a result, the vortex generated in the impeller was larger at the head drop point than in the point of no pressure change, and impeller loss, in particular, increased. Vortices are generated in the impeller at the head drop point due to cavitation on the shroud side of suction surface near the blade inlet. Cavitation and the vortices generated due to cavitation were found to be the cause of increased impeller loss. As a result, it is possible to effectively improve the cavitation performance of the pump by suppressing the vortices that cause head reduction and the cavitation that induce these vortices.
목차
Abstract
1. Introduction
2. Experimental Subject and Method
3. Cavitation CFD Analysis Method and Conditions
4. Results and Discussions
5. Conclusions
References
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