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Numerical Investigation on Performance Improvement by Using a Runner with Splitter for a Francis Turbine

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Fluid-Structure-Sound Interactions and Control (FSSIC 2017)

Part of the book series: Lecture Notes in Mechanical Engineering ((LNME))

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Abstract

In this paper, three-dimensional turbulent flow fields in a low specific speed Francis turbine have been obtained by CFD methods, and the performance prediction for the turbine have been made based on the simulation results. Two types of runner have been compared for the turbine: a conventional runner with uniform blades and another runner with splitter blades. The comparison of results shows that by adding splitter blades, the inlet vortex on the suction surface of the long runner blade is inhibited obviously, leading to an increase in turbine efficiency. Furthermore, the minimum pressure on the runner blade with splitter is higher than for the conventional runner, resulting in a better cavitation performance. In addition, the turbulence kinetic energy and vorticity for the runner with splitter are also smaller than that of the conventional runner.

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References

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Acknowledgements

This research was supported by the National Natural Science Foundation of China (Grant Nos. 51679195, 51479167 and 51339005).

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Authors and Affiliations

  1. Institute of Water Resources and Hydro-Electric Engineering, Xi’an University of Technology, Xi’an, 710048, People’s Republic of China

    J. J. Feng, F. Z. Lin, G. K. Wu, P. C. Guo, G. J. Zhu & X. Q. Luo

Authors
  1. J. J. Feng
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  2. F. Z. Lin
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  3. G. K. Wu
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  4. P. C. Guo
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  5. G. J. Zhu
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  6. X. Q. Luo
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Corresponding author

Correspondence to J. J. Feng .

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Editors and Affiliations

  1. Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen, China

    Yu Zhou

  2. Nihon University, Tokyo, Japan

    Motoaki Kimura

  3. Nihon University, Tokyo, Japan

    Guoyi Peng

  4. Curtin University, Perth, Western Autralia, Australia

    A.D. Lucey

  5. The University of Hong Kong, Hong Kong, China

    Lixi Huang

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© 2019 Springer Nature Singapore Pte Ltd.

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Feng, J.J., Lin, F.Z., Wu, G.K., Guo, P.C., Zhu, G.J., Luo, X.Q. (2019). Numerical Investigation on Performance Improvement by Using a Runner with Splitter for a Francis Turbine. In: Zhou, Y., Kimura, M., Peng, G., Lucey, A., Huang, L. (eds) Fluid-Structure-Sound Interactions and Control. FSSIC 2017. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-10-7542-1_34

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  • DOI: https://doi.org/10.1007/978-981-10-7542-1_34

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-10-7541-4

  • Online ISBN: 978-981-10-7542-1

  • eBook Packages: EngineeringEngineering (R0)

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