Abstract
In this study, effect of water jet on the hydraulic jump in horizontal channel was investigated. The aim of this study was to determine effect of the water jet with different flow rates to the hydraulic jump characteristics. The experiments were carried out in different upstream Froude numbers in the range of 3.43- 4.83 and five different water jet discharges. Free jump and jumps with jets were analyzed by image processing technique with a high speed SVHS camera. Flow structures, roller lengths, water surface profiles and energy losses during free hydraulic jump and hydraulic jumps with water jet were studied and compared experimentally.