3-D Numerical Simulation for Reservoir Water Discharge Together with Positive Weir and Side Weir

Combining with the hydraulic model experiment's research results of the water discharge in a reservoir,the CFD software was adopted for the numerical simulation of positive weir and side weir discharging together. The actual project's numerical simulation results for the discharge flow pattern,water level,flow rate and so on were compared with the results of model experiments,which were better in fitting. The simulation and analysis for different side weir crest elevation show that the side weir discharge has influence on positive weir discharge. The results indicate that while the side weir crest elevation is lower,the shockwave formed in side groove's outlet is stronger.This research result can provide a reference for actual projects.