Discussion on disk friction loss of ultra-low specific speed centrifugal pump

Tianyi Guan; Weiwei Jia; Jing Sun; Lianzhou Yu; Zhenhao Xu; Jie Zhang

doi:10.1117/12.2623436

18 January 2022 Discussion on disk friction loss of ultra-low specific speed centrifugal pump

Tianyi Guan, Weiwei Jia, Jing Sun, Lianzhou Yu, Zhenhao Xu, Jie Zhang

Proceedings Volume 12079, Second IYSF Academic Symposium on Artificial Intelligence and Computer Engineering; 1207932 (2022) https://doi.org/10.1117/12.2623436
Event: 2nd IYSF Academic Symposium on Artificial Intelligence and Computer Engineering, 2021, Xi'an, China

Abstract

Because disk friction loss of ultra-low specific speed centrifugal pump accounts for a large proportion of shaft power, it is important for accurate calculation of the loss. According to the structure of the pump and the characters of the flow of the fluid in the pump cavity, a new disk friction loss formula is put forward, which considers to add two important factors that include the leakage influence coefficient and geometric size of pump cavity. By means of CFD method, according to the results of numerical calculation prediction and test performance curve, the following conclusions are obtained by comparison of accuracy among the new formula and two existing disk friction loss formulas: the new formula is more suitable for calculation of ultra-low specific speed centrifugal pump disk friction loss compared with existing formulas.

Citation Download Citation

Tianyi Guan, Weiwei Jia, Jing Sun, Lianzhou Yu, Zhenhao Xu, and Jie Zhang "Discussion on disk friction loss of ultra-low specific speed centrifugal pump", Proc. SPIE 12079, Second IYSF Academic Symposium on Artificial Intelligence and Computer Engineering, 1207932 (18 January 2022); https://doi.org/10.1117/12.2623436

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