Numerical Simulation Research on Energy Dissipation Characteristics of Fish Scale Weir

Abstract

In order to make the design of hydro buildings no longer limited to traditional models, Zhejiang Province has built various forms of novel art dams. Based on the numerical simulation method, the numerical simulation distribution of pressure and the influencing factors of the energy dissipation rate of the fish scale weir are studied. The results show that with the increase of the head h on the weir, the negative pressure area on the fish scale weir increases, but the negative pressure value remains unchanged or decreases; the h value (0.120m≤h≤0.140m) is inversely proportional to the energy dissipation rate of the fish scale weir, and the θ value (135°≤θ≤180°) is proportional to the energy dissipation rate of the fish scale weir.