Skip to main content
SpringerLink
Log in

Hydraulic calculation of energy dissipators

  • Science: Theory, Experiment, Practice
  • Published:
Hydrotechnical Construction Aims and scope

Conclusions

  1. 1.

    Baffle walls, stilling basins, and their combinations are the simplest and quite effective energy dissipators. Their hydraulic calculation methods for conditions of the two-dimensional problem have been developed rather reliably and cover a wide range of problems. Consideration of the working conditions of the outlet as an incomplete front, especially in the case of considerable nonuniformity, requires a further study, mainly with respect to estimating hydrodynamic loads, cavitation safety, and scouring.

  2. 2.

    A dissipator in the form of one row of rectangular or trapezoidal piers is less effective than a solid wall, but has good dissipative action. The data of Figs. 2 and 4 can be used for calculation.

  3. 3.

    Maximum hydraulic effectiveness with completely acceptable flow regimes can be provided by constructing near the contracted section two rows of piers (Fig. 1f) or their combination with a basin or wall; however, the possibility of the practical realization of such a scheme requires special substantiation with consideration of hydrodynamic loads and cavitation.

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

Access this article

Log in via an institution

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. T. P. Provorova, “Methods of hydraulic calculation of baffle walls and stilling basin,” Gidrotekh. Stroit., No. 8 (1987).

  2. Hydraulic Calculations of Hydraulic Outlet Works: Reference Book [in Russian], Énergoatomizdat, Moscow (1988).

  3. Guide to SNiP II-57-77.T.I. General Principles, Calculations of Concrete and Reinforced-Concrete Dams. Book 3. Handbook of Hydraulic Calculations: P-07-83/VNIIG [in Russian] (1983).

  4. W. H. Hager and Li Damei, “Sill-controlled energy dissipator,” J. Hydraulic Research,30, No. 2 (1992).

    Google Scholar 

  5. J. Ohtsu, J. Yasuda, and Y. Yamanaka, “Drag on a vertical sill of forced jump,” J. Hydraulic Research,29 (1991).

  6. T. P. Provorova, “Calculation of a combined dissipator in the form of the stilling basin supplemented by a baffle wall,” Izv. VNIIG,226 (1992).

  7. F. W. Blaisdell, “Development and hydraulic design, St. Anthony Falls stilling basin,” Proc. ASCE,73, No. 2 (1947).

    Google Scholar 

  8. J. N. Bradley and A. J. Peterka, “Hydraulic design of stilling basin,” Proc. ASCE,83, No. HY5 (1957).

  9. V. E. Lyapin, Energy Dissipators in the Form of Slotted Walls [in Russian], Gosénergoizdat, Leningrad (1960).

    Google Scholar 

  10. W. Rand, “Flow over dentated sill in an open channel,” Proc. ASCE,92, No. HY5 (1966).

  11. S. M. Slisskii and É. P. Sandoval', “Reactive effect of block dissipators,” in: Proceedings of Hydraulic Engineering Conferences and Meetings. Methods of Research and Hydraulic Calculations of Hydraulic Outlet Works [in Russian] (1985).

  12. A. S. Obrazovskii, “Calculation of conjugate depths of a jump occurring near trapezoidal dissipators,” Gidrotekh. Stroit., No. 5 (1954).

  13. D. R. Basko and J. R. Adams, “Drag forces on baffle blocks hydraulic jump,” Proc. ASCE,96, No. HY12 (1972).

  14. V. Mura Hari, “The drag on a baffle block under forced hydraulic jumps,” Water Power, No. 11 (1976).

  15. M. J. A. Baig, S. K. Vali, S. S. Rao, and A. V. N. Chetty, “Forced hydraulic jump in rectangular channel of small slopes by sill of finite lengths,” Ind. Journal of Power and River Valley Development,34, No. 2 (1984).

    Google Scholar 

  16. R. Wanoschek and W. H. Hager, “Sill-controlled trapezoidal stilling basin,” Proc. 24th Cong. IAHR, V.D. 266 (1991).

  17. J. McCorquadale and M. K. Girattalla, “Supercritical flow over sills,” Proc. ASCE,98, No. HY4 (1972).

  18. D. M. Tyagi, P. K. Pande, and M. K. Mittal, “Drag on baffle walls in hydraulic jump,” Proc. ASCE,104, No. HY4 (1978).

  19. D. V. Shterenlikht and A. B. Maslov, “Drag characteristics of block energy dissipators,” Gidrotekh. Stroit., No. 6 (1984).

  20. K. S. Karki and S. Kumar, “Drag on vertical sill of forced jump (discussion),” J. Hydraulic Research,30, No. 2 (1992).

    Google Scholar 

  21. R. K. G. Raju, M. K. Kitaal, M. S. Verma, and V. R. Ganeshan, “Analysis of flow over baffle blocks and end sill,” J. Hydraulic Research,18, No. 3 (1980).

    Google Scholar 

  22. N. N. Pillai, A. Goel, and A. K. Dubey, “Hydraulic jump type stilling basin for low Froude number,” Proc. ASCE, J. Hydraulic Research,115, No. 7 (1989).

    Google Scholar 

  23. N. G. Bhowic, “Stilling basin design for low Froude number,” Proc. ASCE,101, No. HY7 (1975).

  24. N. N. Belyashevskii, N. G. Pivovar, and I. I. Kalantyrenko, Calculations of the Lower Pool Beyond the Outlet Works on Nonrock Foundations [in Russian], Naukova Dumka, Kiev (1973).

    Google Scholar 

  25. A. N. Rakhmanov, “Erosional ability of a flow below baffle teeth,” Izv. VNIIG,70 (1962).

Download references

Authors
  1. T. P. Provorova
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 10, pp. 6–11, October, 1995.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Provorova, T.P. Hydraulic calculation of energy dissipators. Hydrotechnical Construction 29, 562–569 (1995). https://doi.org/10.1007/BF02443044

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02443044

Keywords

Search

Navigation