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논문 기본 정보

자료유형
학술저널
저자정보
안덕인 (전주대학교) 김홍건 (전주대학교)
저널정보
한국기계가공학회 한국기계가공학회지 한국기계가공학회지 제18권 제10호
발행연도
2019.10
수록면
83 - 92 (10page)

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초록· 키워드

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A pump is considered to be submersible when a motor and a pump are integrated and operate while submerged in water. Submersible pumps mainly function as rejection pumps to prevent foods in densely populated areas, as cold water circulation pumps in large power plants, as pumps to supply irrigation water, as drainage pumps to prevent flooding of agricultural lands, as water supply intake pumps, and as inflow pumps for sewage treatment. The flow in such turbomachines (submersible pumps) inevitably involves various eddy currents. Since it is almost impossible to accurately grasp the complex three-dimensional flow structure and characteristics of a rotating turbomachine through actual testing, three-dimensional numerical analysis using computational fluid dynamics techniques measuring the flow field, velocity, and the pressure can be accurately predicted. In this study, the shape of the impeller was developed to reduce vibration and noise. This was done by increasing the efficiency of the existing submersible pump and reducing turbulence. In order to evaluate the pump’s efficiency and turbulence reduction, we tried to analyze the flow using ANSYS Fluent V15.0, a commercial finite element analysis program. The results show that the efficiency of the pump was improved by 4.24% and the Reynolds number was reduced by 15.6%. The performance of a developed pump with reduced turbulence, vibration, and noise was confirmed.

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ABSTRACT
1. 서론
2. 수중펌프의 유동해석
3. 결과 및 고찰
4. 결론
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UCI(KEPA) : I410-ECN-0101-2019-581-001324086