Skip to main content
Log in

Fin performance of 3-D aerator devices with backward lateral deflectors

  • Letter
  • Published:
Journal of Hydrodynamics Aims and scope Submit manuscript

Abstract

In the present work, a 3-D aerator device with backward lateral deflectors, called BLD-3-D aerator device, is developed, and the lateral cavity and fin performance of the BLD-3-D aerator device are experimentally investigated. The findings show that, the relative lateral cavity length with backward lateral deflectors is shorter than that with current lateral deflectors under the same approach flow conditions, and on the basis of the results of the relative cavity length ratio between the lateral and bottom aerators the BLD-3-D aerator device is of remarkable performance for the water fin control thanks to the decrease of the relative lateral cavity length.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Peterka A. J. The effect of entrained air on cavitation pitting [C]. Proceedings of Minnesota International Hydraulics Convention, Minneapolis, Minnesota, USA, 1953, 507–0518.

  2. Bhosekar V. V., Jothiprakash V., Deolalikar P. B. Orifice spillway aerator: Hydraulic design [J]. Journal of Hydraulic Engineering, ASCE, 2012, 138(6): 563–572.

    Article  Google Scholar 

  3. Bai R. D., Zhang F. X., Wang W. et al. Air entrainment and detranment downstream a chute aerator [J]. Journal of Hydrodynamics, 2019, 31(1): 76–82.

    Article  Google Scholar 

  4. Wu J. H., Wu W. W., Ruan S. P. On necessity of placing an aerator in the bottom discharge tunnel at the Longtan Hydropower Station [J]. Journal of Hydrodynamics, 2006, 18(6): 698–701.

    Article  Google Scholar 

  5. Nie M. X., Wu G. H. Effect of lateral deflector on aeration in the bottom and lateral cavities of flows over spillway [J]. Journal of Tsinghua University, 2003, 43(8): 28–36(in Chinese).

    Google Scholar 

  6. Liu C., Yang Y. Q., Deng J. et al. Experimental study on air entrainment to alleviate cavitations for downstream sidewalls of ogee-section in spillway tunnel [J]. Chinese Journal of Hydrodynamics, 2006, 21(4): 465–472(in Chinese).

    Google Scholar 

  7. Wu J. H., Ma F. Cavity flow regime for spillway aerators [J]. Science China Technical Science, 2013, 56(4): 818–823.

    Article  Google Scholar 

  8. Wu J. H., Li D., Ma F. et al. Fin characteristics of aerator devices with lateral deflectors [J]. Journal of Hydrodynamics, 2013, 25(2): 258–263.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Jian-hua Wu.

Additional information

Project supported by the National Natural Science Foundation of China (Grant No. 50879021).

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Xu, Jr., Wu, Jh., Peng, Y. et al. Fin performance of 3-D aerator devices with backward lateral deflectors. J Hydrodyn 32, 410–413 (2020). https://doi.org/10.1007/s42241-020-0016-2

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s42241-020-0016-2

Key words

Navigation