A cavitation performance prediction method for pumps: Part2-sensitivity and accuracy

Long Yun; Zhang Yan; Chen Jianping; Zhu Rongsheng; Wang Dezhong

doi:https://doi.org/10.1016/j.net.2021.05.027

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자료유형: 학술저널

저자정보: Long Yun (National Research Center of Pumps, Jiangsu University) Zhang Yan (Marine Design and Research Institute of China) Chen Jianping (Marine Design and Research Institute of China) Zhu Rongsheng (National Research Center of Pumps, Jiangsu University) Wang Dezhong (School of Mechanical Engineering, Shanghai Jiaotong University)

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제53권 제11호

발행연도: 2021.11

수록면: 3,612 - 3,624 (13page)

DOI: https://doi.org/10.1016/j.net.2021.05.027

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At present, in the case of pump fast optimization, there is a problem of rapid, accurate and effectiveprediction of cavitation performance. In “A Cavitation Performance Prediction Method for Pumps PART1-Proposal and Feasibility” [1], a new cavitation performance prediction method is proposed, and thefeasibility of this method is demonstrated in combination with experiments of a mixed flow pump. However, whether this method is applicable to vane pumps with different specific speeds and whetherthe prediction results of this method are accurate is still worthy of further study. Combined with theexperimental results, the research evaluates the sensitivity and accuracy at different flow rates. For acertain operating condition, the method has better sensitivity to different flow rates. This is suitable formulti-parameter multi-objective optimization of pump impeller. For the test mixed flow pump, themethod is more accurate when the area ratios are 13.718% and 13.826%. The cavitation vortex flow isobtained through high-speed camera, and the correlation between cavitation flow structure and cavitation performance is established to provide more scientific support for cavitation performance prediction. The method is not only suitable for cavitation performance prediction of the mixed flow pump,but also can be expanded to cavitation performance prediction of blade type hydraulic machinery, whichwill solve the problem of rapid prediction of hydraulic machinery cavitation performance

#Pumps #Cavitation performance prediction method #Cavitation #Pressure isosurface

참고문헌 (22)

참고문헌 신청

Long Yun / 2020 / A cavitation performance prediction method for pumps PART1-Proposal and feasibility / Nuclear Engineering and Technology 52(11):2471~2478

Y. Zhao / 2016 / Numerical analysis of developed tip leakage cavitating flows using a new transport-based model / Int. Commun. Heat Mass Tran 78:39~47

B. Che / 2019 / Control effect of micro vortex generators on leading edge of attached cavitation / Phys. Fluids 31(4):044102

N. Qiu / 2020 / Effects of microvortex generators on cavitation erosion by changing periodic shedding into new structures / Phys. Fluids 32(10):104108

X. Bai / 2020 / Comparative Study of different vortex identification methods in a tip-leakage cavitating flow / Ocean. Eng 207:107373

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