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Design of Stilling Basin Model with Impact Wall and end Sill

Author Affiliations

  • 1 Department of Civil Engineering, Maulana Azad National Institute of Technology, Bhopal, INDIA

Res. J. Recent Sci., Volume 2, Issue (3), Pages 59-63, February,2 (2013)


The stilling basins are used to dissipate the energy of flowing water and protect the downstream structures like spillways, canals, etc. from the scouring. Hence hydraulic engineers need proper attention for the design of stilling basin. The aim of the present experimental investigation is to design the new stilling basin model for non circular pipe outlet using impact wall and end sill only. Performance of outlet basins having impact wall of varying size and location were evaluated based on the performance index (PI), keeping the constant test run time and same base material downstream end sill. Higher values of PI indicate better performance of the basin model. Based on the experimental performance of different stilling basin models are presented and it is concluded that by designing the appropriate impact wall size at suitable location, not only the efficiency of stilling basin model increases but length of basin reduced to 29 % as compared to USBR VI stilling basin.


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