With the widely application of IS series centrifugal pumps in industry and agriculture, the blade-passing frequency (BPF) flow-induced noise in these pumps are tend to be optimized. In this paper, a common type IS50-65-160 is chosen as the model pump to do the optimization of BPF noise. Considering both the effect of noise reduction and applicability of the project, an optimization scheme of cutting the impeller diameter is proposed. An analysis of the different performance curves, corresponding to different impeller diameters, emerges the diameter optimization range of impeller from 0.95Dd to 1.0Dd. And two optimal schemes, cutting impeller diameter by 2.5% and 5%, are taken through the comparison with experimental results. Then properties of this BPF noise are predicted by a hybrid method through ANSYS-CFX and LMS Virtual. Lab Acoustics. The result shows that the dipole source is the main flow-induced noise in low specific speed pump, so only dipole source is considered in the simulation. And the sound pressure distributions on monitoring points of these two suggested schemes are calculated and compared with the design impeller. The comparison shows that the optimal scheme is to cut the impeller diameter by 2.5%, while a further cut (0.975Dd) would lead to a much greater loss in head and the noise control effect is not better than cutting by 2.5%.
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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
The Optimization of Flow-Induced Noise Under BPF by Changing the Impeller Diameter Available to Purchase
Jun Yang,
Jun Yang
Jiangsu University, Zhenjiang, Jiangsu, China
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Shouqi Yuan,
Shouqi Yuan
Jiangsu University, Zhenjiang, Jiangsu, China
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Jianping Yuan,
Jianping Yuan
Jiangsu University, Zhenjiang, Jiangsu, China
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Yaling Li,
Yaling Li
Jiangsu University, Zhenjiang, Jiangsu, China
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Qiaorui Si
Qiaorui Si
Jiangsu University, Zhenjiang, Jiangsu, China
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Jun Yang
Jiangsu University, Zhenjiang, Jiangsu, China
Shouqi Yuan
Jiangsu University, Zhenjiang, Jiangsu, China
Jianping Yuan
Jiangsu University, Zhenjiang, Jiangsu, China
Yaling Li
Jiangsu University, Zhenjiang, Jiangsu, China
Qiaorui Si
Jiangsu University, Zhenjiang, Jiangsu, China
Paper No:
FEDSM2012-72167, pp. 1465-1470; 6 pages
Published Online:
July 24, 2013
Citation
Yang, J, Yuan, S, Yuan, J, Li, Y, & Si, Q. "The Optimization of Flow-Induced Noise Under BPF by Changing the Impeller Diameter." 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. 1465-1470. ASME. https://doi.org/10.1115/FEDSM2012-72167
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