A review of energy dissipation on different types of spillways

The regulated discharge of flow from a dam into a region farther downstream can be assisted by a hydraulic structure known as a spillway. Spillways are gaining in popularity due to high efficiency and low cost of construction. A spillway’s primary function is to reduce the amount of kinetic energy sent downstream. The destruction caused by flood water has been decreased owing to the presence of a spillway in dams, a variety of research that are connected to different types of spillways have been offered. The present study examines the dissipation of energy on several different types of spillways and the implications having on flood water. Studies were conducted on a variety of spillways, such as chute spillways, ogee spillways, and stepped spillways, and found that among various spillway types, the stepped spillway is the most effective in dissipating energy. In addition, there is room for further research on various shapes of spillways, such as an octagonal stepped spillway with and without baffles, at various baffle locations and varying channel slopes, material roughness effect, sediment effect, and so on, in order to improve the energy dissipation that occurs downstream of the hydraulic structures.