Relevant Problem of a Hydraulic Jump at Diyala Weir and the Proposed Remedy

Abstract

This study aims to analyze the Diyala weir problems and compares it with the safe limit and proposes the treatment for these problems. One of the most influencing problems in the site of weir was the formation of the hydraulic jump, it was found that the scour occurs due to the position of the hydraulic jump and the sequence depth of the jump is higher than the tail water depth. Some treatment procedures are suggested, these treatments cover this problem by presenting a suitable stilling basin as well as recommended to use a low weir at end of basin to produce a back water curve that should be increase the stage of tail water and ensuring the stability of a hydraulic jump .