Energy Dissipation and Atomization of Flood Discharge of Hydropower Stations on Canyon Rivers

A hydropower station on a canyon river typically features with high water head and large unit discharge. This type of hydropower station is also surrounded by thick burden of riverbed and complex geological and topographical conditions. Energy dissipation and atomization of flood discharge are quite important to the design and construction of these hydropower stations. Energy dissipation of flood discharge of two hydropower stations (hydropower station A and Shuibuya hydropower station) are studied on in the present paper. Both prototype observations and physical model tests have been carried out to study the characteristics of downstream riverbed erosion, distribution and development of flood discharge atomization near the damsite. The principle and methodology of layout a hydropower station on a canyon river are discussed. The results could be useful for the design and operation of similar hydropower stations.