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Numerical investigation on vibration and noise induced by unsteady flow in an axial-flow pump

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Abstract

Full-scale structural vibration and noise induced by flow in an axial-flow pump was simulated by a hybrid numerical method. An unsteady flow field was solved by a large eddy simulation-based computational fluid dynamics commercial code, Fluent. An experimental validation on pressure fluctuations was performed to impose an appropriate vibration exciting source. The consistency between the computed results and experimental tests were interesting. The modes of the axial-flow pump were computed by the finite element method. After that, the pump vibration and sound field were solved using a coupled vibro-acoustic model. The numerical results indicated that the the blade-passing frequency was the dominant frequency of the vibration acceleration of the pump. This result was consistent with frequency spectral characteristics of unsteady pressure fluctuation. Finally, comparisons of the vibration acceleration between the computed results and the experimental test were conducted. These comparisons validated the computed results. This study shows that using the hybrid numerical method to evaluate the flow-induced vibration and noise generated in an axial-flow pump is feasible.

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Authors and Affiliations

  1. School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China

    Eryun Chen, Zuiling Ma, Ailing Yang & Guofang Nan

  2. Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, Shanghai, 200093, China

    Eryun Chen

  3. School of Medical Instruments and Food Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China

    Gaiping Zhao

  4. Shanghai Marine Equipment Research Institute, Shanghai, 200031, China

    Guoping Li

Authors
  1. Eryun Chen
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  2. Zuiling Ma
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  3. Gaiping Zhao
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  4. Guoping Li
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  5. Ailing Yang
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  6. Guofang Nan
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Correspondence to Eryun Chen.

Additional information

Recommended by Associate Editor Cheolung Cheong

Eryun Chen received Ph.D. degree in Nanjing University of Science and Technology, Nanjing, China, in 2009. Now he works at University of Shanghai for Science and Technology. His current research interests include computation fluid dynamics and flow-induced vibration and noise.

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Chen, E., Ma, Z., Zhao, G. et al. Numerical investigation on vibration and noise induced by unsteady flow in an axial-flow pump. J Mech Sci Technol 30, 5397–5404 (2016). https://doi.org/10.1007/s12206-016-1107-4

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  • DOI: https://doi.org/10.1007/s12206-016-1107-4

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