RANS 기반 CFD 활용 사류 펌프 내부 유동 및 공동 현상 수치해석적 분석Numerical Analysis of Internal Flow and Cavitation Phenomenon for a Mixed-Flow Pump with RANS-based CFD Methodology
- Other Titles
- Numerical Analysis of Internal Flow and Cavitation Phenomenon for a Mixed-Flow Pump with RANS-based CFD Methodology
- Authors
- 안현준; 김용인; 정재호
- Issue Date
- Oct-2023
- Publisher
- 한국유체기계학회
- Keywords
- Compumtational fluid dynamics(전산유체 역학); Mixed-flow pump(사류 펌프); Cavitation(공동 현상); Vortex indentification (와류 구조 가시화)
- Citation
- 한국유체기계학회 논문집, v.26, no.5, pp.20 - 26
- Journal Title
- 한국유체기계학회 논문집
- Volume
- 26
- Number
- 5
- Start Page
- 20
- End Page
- 26
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/89320
- ISSN
- 2287-9706
- Abstract
- Computational fluid dynamics were widely used to analyze the hydrodynamic behavior of the mixed-flow pump, and reliability and accuracy were validated by comparing the results with the experimental data. In this study, complicated cavitation phenomena has been implemented by the RPE model. As a result, it has been found that the overall error was 6.8% through comparison with the performance curve of the analysis value and the experimental data. Recirculation occurred near the shroud at the impeller inlet when the flow rate was 6 m3/min. In addition it was found that non-uniform pressure drop occurred at the impeller outlet when the flow rate was 9 m3/min. Through vortex visualization technique, the onset position of the tip leakage vortex captured at the blade tip region of suction surface. By comparing with vortex structure and cavitation region, it was found that tip leakage vortex suppresses cavitation phenomenon at the blade tip region of suction surface.
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Collections - 공과대학 > 기계공학과 > 1. Journal Articles
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