Numerical simulation for flow-induced noise in a centrifugal pump based on Lighthill acoustic analogy theory

PDF(2022 KB)

Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (23) : 84-90.

SI Qiaorui,SHENG Guochen,HENG Yaguang,CUI Qianglei,HUANG Kaile

Author information +

History +

Abstract

Based on Lighthill acoustic analogy theory,the interior acoustic field of a centrifugal pump was solved by using the method of CFD combined with the computational acoustics (CA).Firstly,the 3D unsteady computation was performed for the inner flow field in the centrifugal pump with the SST SAS turbulence model to deduce the acoustic source information,solve the acoustic field problem based on the results of the flow field computation,and compare advantages and disadvantages of BEM and FEM applied in this acoustic field problem.The results showed that the pressure fluctuation intensity near the volute tongues is the maximum and the sound pressure level is the highest; the blade passing frequency and its double-frequency is the main frequency of pressure fluctuation at each monitored point,the dynamic-static interaction between the impeller and volute tongues is the main cause of the centrifugal pump’s flow-induced noise; with increase in flow rate,the total sound pressure level gradually decreases to reach its minimum value at the operation case point with the highest efficiency and then increases; the more the deviation from the operation case point with the highest efficiency,the more obvious the wide-frequency band components; the acoustic FEM has obvious advantages in predicting discretized noise,this method can comprehensively consider various acoustic sources of turbulent noise,and it is more advantageous to studying the inner flow field wide-frequency band noise problems.

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

SI Qiaorui,SHENG Guochen,HENG Yaguang,CUI Qianglei,HUANG Kaile. Numerical simulation for flow-induced noise in a centrifugal pump based on Lighthill acoustic analogy theory[J]. Journal of Vibration and Shock, 2018, 37(23): 84-90

References

[1] 袁寿其．泵理论与设计[M]．北京：机械工业出版社，2014．
Shouqi Yuan．Pump Theory and Design [M]．Beijing: Machinery Industry Press，2014．
[2] 王福军．计算流体动力学分析：CFD软件原理与应用[M]．北京：清华大学出版社，2004．
Wang Fujun．Computational Fluid Dynamics Analysis: CFD Software principles and applications [M].Beijing: Tsinghua University Press, 2004.
[3] Johann F G． Centrifugal Pumps[M]．New York：Springer Berlin Heidelberg，2008．
[4] 蒋爱华，张志谊，章艺．离心泵噪声研究的综述和展望[J]．振动与冲击，2011，3（2）：77-84．
Jiang Aihua，Zhang Zhiyi，Zhang Yi．Overview and prospect of the research on centrifugal pump noise [J]．JOURNAL OF VIBRATION AND SHOCK，2011，3 (2)：77-84．
[5] Lighthill M J．On sound generated aerodynamically，I． General theory[J]．Proc．R． Soc．Lond．A，1952，211：564-587．
[6] Lighthill M J．On sound generated aerodynamically，II．Tubulence as a source of sound[J]．Proc．R．Soc．Lond．A，1954，222：1-32．
[7] Curle N．The influence of solid boundaries upon aerodynamic sound[J]．Proceedings of the Royal Society of London，Series A，Mathematical and Physical Sciences，1955，231：505-514．
[8] Goldstein J L．An optimum processor theory for the central formation of the pitch of complex tones[J]．Journal of the Acoustical Society of Amreica，1973，54：1496-1516．
[9] Dong．R．，Chu．S．，Katz．J．Effect of modification to tongue and impeller geometry on unsteady flow，pressure fluctuations and noise in a centrifugal pump．ASME Journal of Fluids Engineering，1997（119）：506-515．
[10] M．A．Langthjem，N．OIhoff．A numerical study of flow-induced noise in a two-dimensional centrifugal pump ．Part I．Hydrodynamics．Journal of Fluids and Structures，2004（19）：349-368．
[11] 袁寿其，司乔瑞，薛菲，等．离心泵蜗壳内部流动诱导噪声的数值计算[J]．排灌机械工程学报．2011(02)
Shouqi Yuan，Qiaorui Si，Fei Xu，et al．Numerical calculation of internal flow-induced noise in centrifugal pump volute[J]．Journal of Drainage and Irrigation Machinery Engineering．2011(02)
[12] 司乔瑞，袁寿其，袁建平，等．基于CFD/CA的离心泵流动诱导噪声数值预测[J]．机械工程学报，2013，49（2）：177-184．
Qiaorui Si，Shouqi Yuan，Jianping Yuan，et al．Flow-induced Noise Calculation of Centrifugal Pumps Based on CFD/CA Method[J]．Journal of Mechanical Engineering，2013，49（2）：177-184．
[13] 司乔瑞．离心泵低噪声水力设计及动静干涉机理研究[D]．镇江：江苏大学，2014．
Qiaorui Si．Investigation on Hydraulic Design of Centrifugal Pumps with Low Noise and Mechanism of Rotor-Stator Interaction[D]．Zhenjiang：Jiangsu University，2014．
[14] Qiaorui Si，Shouqi Yuan，Jianping Yuan，et al．Numerical investigation of pressure fluctuation in centrifugal pump volute based on SAS model and experiment validation[J]．Advances in Mechanical Engineering，2013：972081．
[15] 司乔瑞，袁寿其，袁建平．叶轮隔舌间隙对离心泵性能和流动噪声影响的试验研究[J]. 振动与冲击, 2016, 35(3): 164-168.
Si Qiao-rui Yuan Shou-qi Yuan Jian-ping. Experimental study on the influence of impeller-tongue gap on performance and flow-induced noise characteristic of centrifugal pumps. Journal of Vibration And Shock, 2016, 35(3): 164-168.
[16] 王治国．ACTRAN工程声学有限元分析理论与应用[M]．北京：国防工业出版社，2007．
WANG Zhiguo．ACTRAN Finite element analytical theory and application[M]．Beijing：NaDefense Industry Press，2007．
[17] Heng Yaguang，Yuan Shouqi，Hong Feng，et al． A hybrid method for flow-induced noise in centrifugal pumps based on LES and FEM[C]．Proceedings of ASME Fluids Engineering Division Summer Meeting，2013：16594．
[18] 谭磊，王玉川，曹树良，等．离心泵蜗舌区非定常流动特性[J]．北京理工大学学报，2014（7）：670-675．
Tan Lei，Wang Yuchuan，Cao Shuliang，et al．Characteristic of unsteady flow around the tongue region in a centrifugal pump[J]．Transaction of Beijing Institute of Technology，2014（7）：670-675．
[19] Tan L，Zhu B，Wang Y，et al．Numerical study on characteristics of unsteady flow in a centrifugal pump volute at partial load condition[J]．Engineering Computations：Int J for Computer-Aided Engineering，2015，32(6)：1549-1566.