To explore the transient characteristic of a centrifugal pump with the specific speed of 90 during startup period, the internal three-dimensional unsteady flow was solved by using CFD. Wherein to overcome the difficulty in implement of boundary conditions in numerical simulation, a closed-loop pipe system that includes a centrifugal pump was built to accomplish self-coupling calculation. The results show that at the very beginning of startup, flow rate rises slowly and non-dimensional head coefficient is much higher than quasi-steady value, the quasi-assumption can not be competent for predicting transient effect well. Moreover, the insufficient of energy conversion makes the evolvement of transient flow field lags behind that of quasi-steady flow field, i.e., kinetic energy can’t convert pressure energy in time during acceleration flow period. Rotor-stator interaction makes flow rate present slight fluctuation characteristic under stable operating conditions.
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ASME 2012 Fluids Engineering Division Summer Meeting collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels
July 8–12, 2012
Rio Grande, Puerto Rico, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-4475-5
PROCEEDINGS PAPER
Study of Transient Behavior in Centrifugal Pump During Startup Period
Yu-liang Zhang,
Yu-liang Zhang
Zhejiang University, Hangzhou, Zhejiang, China
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Zu-chao Zhu,
Zu-chao Zhu
Zhejiang University, Hangzhou, Zhejiang, China
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Bao-ling Cui,
Bao-ling Cui
Zhejiang Sci-Tech University, Hangzhou, Zhejiang, China
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Yi Li
Yi Li
Zhejiang Sci-Tech University, Hangzhou, Zhejiang, China
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Yu-liang Zhang
Zhejiang University, Hangzhou, Zhejiang, China
Zu-chao Zhu
Zhejiang University, Hangzhou, Zhejiang, China
Bao-ling Cui
Zhejiang Sci-Tech University, Hangzhou, Zhejiang, China
Yi Li
Zhejiang Sci-Tech University, Hangzhou, Zhejiang, China
Paper No:
FEDSM2012-72065, pp. 375-380; 6 pages
Published Online:
July 24, 2013
Citation
Zhang, Y, Zhu, Z, Cui, B, & Li, Y. "Study of Transient Behavior in Centrifugal Pump During Startup Period." Proceedings of the ASME 2012 Fluids Engineering Division Summer Meeting collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels. Volume 1: Symposia, Parts A and B. Rio Grande, Puerto Rico, USA. July 8–12, 2012. pp. 375-380. ASME. https://doi.org/10.1115/FEDSM2012-72065
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