Civil Engineering Department National Institute of Technology, Kurukshetra, Haryana, India
This paper presents an experimental work leading to the evolvement 01 efficient stilling basin models having diverging side walls. The experiments on various stilling basin geometries were conducted at Froude numbers (Fr) = 4.17 and 6.15. It was found that the performance of stilling basins with diverging side walls having a play of 1:3 can be improved by adding appurtenances like baffle hlocks, end sill or by providing a reverse slope to the floor of the stilling basin. A non-dimensional number using scour parameters llke maximum depth of scour and its location after the end sill, has been used for comparison of the performance of various stilling basin models. The erodible bed material and the lime for each test fun were kept same during the entire study to facilitate the comparison of the performance.
