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논문 기본 정보

저자정보
(Mokpo National University) (NS Hydro) (Mokpo National University)
저널정보
한국유체기계학회 한국유체기계학회 논문집 한국유체기계학회 논문집 제27권 제4호(통권 제145호)
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    초록·키워드

    Multistage centrifugal pumps are designed for industrial purposes to satisfy high head requirements. The two-stage centrifugal pump is used for specific industrial purposes. The impellers in the two-stage centrifugal pump are arranged in an opposite direction, and crossover guides the flow from 1<SUP>st</SUP> stage to 2<SUP>nd</SUP> stage impellers. The numerical analysis is performed to evaluate the performance of a two-stage centrifugal pump. The shaft sleeve design is modified from an edge to a curved type for better flow behavior. The numerical analysis showed that the modified shaft sleeve shape improves the pump’s hydraulic and suction performances, as well as internal flow behavior in a wide operation range. Besides the pump performances, the modified shaft sleeve shape showed structural stability with a relatively large margin below the ultimate tensile stress.

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      UCI(KEPA) : I410-151-24-02-090645920