HYDRAULIC JUMP GENERATION BY WEIR MODEL AND LEAP LENGTH STUDY FOR PRACTICE PURPOSE

A parameter that needed to design the stilling basin dimension in the downstream of the weir was the length of hydraulic jump. The parameter was needed as a basis to determine the stilling basin length that likely can reduce the water energy that fall from the top of the weir into stilling basin floor. The jump length function was developed based on hydraulic leap depth in the upstream and the downstream. The length was conducted experimentally in laboratory. The data of experiment result was analyzed by regression technic. The results are the hydraulic jump length in a function with variable is a ratio of downstream and upstream depth of the hydraulic jump.