NEW DESIGN OF STILLING BASIN MODEL WITH SQUARE SILL

H.L.Tiwari, V.K.Gahlot, Arun Goel, Bikram Prasad

Abstract: Sustainable irrigation management system required efficient and economical design of stilling basin .The stilling basins are used to dissipate the energy of flowing water and protect the downstream structures like spillways, canals, etc. from the scouring. The aim of the present experimental investigation is to design the new stilling basin models for non circular pipe outlet using intermediate sill of square cross section. Performance of new stilling basin models were determined with performance index (PI), by operating the constant test run time of one hour and same base material downstream end sill. Increased values of PI indicate better performance of the stilling basin model. After experimentation with thirty test runs, it was found that when intermediate sill of square cross section is placed in suitable location in the stilling basin model, performance of basin improved significantly as compared to USBR VI impact basin model

Keywords: Energy, Froude number, Stilling- basin, Scouring, USBRVI.

DOI: https://doi.org/10.15623/ijret.2015.0423024