Skip to main content

Advertisement

Log in

Local scour by multiple slit-type energy dissipaters

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

Abstract

Energy dissipation and scour control are all the key issues for the design of hydraulic structures. On the basis of the high energy dissipation for the multiple slit-type energy dissipaters (M-STED) developed by the authors, in this work, the characteristics of the scour hole for the M-STED were experimentally investigated through three sets of those physical models with five cases and a scour hole form index was proposed. The results show that, the M-STED results in not only the high energy dissipation but also the mild upstream slope of the scour hole thanks to the scour hole form index of larger than 0.5, which is in favor of the safety of the release works.

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.

Similar content being viewed by others

References

  1. Wu J. H., Li S. F., Ma F. Energy dissipation of slot-type flip buckets [J]. Journal of Hydrodynamics, 2018, 30(2): 365–368.

    Article  Google Scholar 

  2. Tian R., Wu J. H., Xu Z. et al. Jet trajectory of flow-separating slot-type flip bucket [J]. Water Supply, 2020, 20(1): 65–72.

    Article  Google Scholar 

  3. Deng J., Wei W. R., Tian Z. et al. Analysis of pressure differences and water transverse movement in a partial-flip bucket [J]. Journal of Hydraulic Engineering, ASCE, 2020, 146(9): 04020063.

    Article  Google Scholar 

  4. Deng J., Yang Z. L., Tian Z. et al. A new type of leak-floor flip bucket [J]. Science China Technology Science, 2016, 59(4): 565–572.

    Article  Google Scholar 

  5. Lucas J., Hager W. H., Boes F. M. Deflector effect on chute flow [J]. Journal of Hydraulic Engineering, ASCE, 2013, 139(4): 444–449.

    Article  Google Scholar 

  6. Pfister M., Hager W. H. Deflector-jets affected by pre-aerated approach flow [J]. Journal of Hydraulic Research, 2012, 50(2): 181–191.

    Article  Google Scholar 

  7. Wei W. R. Experimental study on hydraulic characteristics of X-shape flaring gate pier and deflecting stilling basin united energy dissipater [J]. Applied Mechanics and Materials, 2013, 376: 279–283.

    Article  Google Scholar 

  8. Wu J. H., Ma F., Yao L. Hydraulic characteristics of slit-type energy dissipaters [J]. Journal of Hydrodynamics, 2012, 24(6): 883–887.

    Article  Google Scholar 

  9. Lian J. J., He J. L., Gou W. J. et al. Effects of bucket type and angle on downstream nappe wind caused by a turbulent jet [J]. International Journal of Environmental Research and Public Health, 2019, 16(8): 1360.

    Article  Google Scholar 

  10. Huai W. X., Wang Z. W., Qian Z. D. et al. Numerical simulation of sandy bed erosion by 2D vertical jet [J]. Science China Technological Sciences, 2011, 54(12): 3265–3274.

    Article  Google Scholar 

  11. Huang Q. J., Wu J. H. Research on contraction energy dissipaters [J]. Journal of Hohai University (Natural Sciences), 2008, 36(2): 219–223 (in Chinese).

    Google Scholar 

  12. Wu J. H., Yao L., Ma F. Hydraulics of a multiple slit-type energy dissipaters [J]. Journal of Hydrodynamics, 2014, 26(1): 86–93.

    Article  Google Scholar 

  13. Ministry of Water Resources of the People’s Republic of China. Specification for normal hydraulic model test SL 155-2012 [S]. Beijing, China: China Water and Power Press, 2012 (in Chinese).

    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. 51879129).

Biography: Li Yao (1985-), Female, Ph. D., Lecture

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Yao, L., Wu, Jh. Local scour by multiple slit-type energy dissipaters. J Hydrodyn 32, 1221–1224 (2020). https://doi.org/10.1007/s42241-020-0068-3

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s42241-020-0068-3

Key words

Navigation