楼庄子水库溢洪道消能工试验研究

Test and study of spillway energy dissipater for LZZ Reservoir

通过物理模型试验对楼庄子水库溢洪洞挑流消能进行优化,改变其挑角和边墙结构使水流跌入河床内,避免对河岸产生淘刷和雾化。采用VOF法的标准RNGk-ε双方程紊流模型对挑坎进行数值模拟,结果:数值模拟值与物理模型实测值基本一致,说明采用数学模型能够模拟类似的挑流消能问题,其成果可供设计参考。

The spillway energy dissipater of LZZ Reservoir was optimized based on physical model test, with the deflecting angle and side wall structure being optimized to make the water fall into the river bed, so as to avoid scouring and atomizing at the river banks. The standard RNG k-ε double equation turbulence model of VOF was adopted to simulate the deflecting bucket. The simulation results are basically identical with that out of physical model test,showing that mathematical model is able to simulate similar ski-jump energy dissipater and provide reference for design.