Abstract : Hydraulic Jump (HJ) is an important natural phenomenon in rivers, channels and spillways. The length of aprons and the energy between upstream and downstream must be considered. This research proposed a new model to study the parameters of the hydraulic Jump in a new channel shape like a trapezoidal Channel with side slop 1:1. It also studies more than one shape of sills to control the hydraulic Jump, which can lead to energy dissipation. The experiments were conducted over a range of Froude num
Keywords : HJ, Studying The Effect, Different Sill Positions, Hydraulic Jump Length, studying