拱网水力特性研究

Study on Hydraulic Characteristics of Arch Mesh Barrier

拱型网板(简称拱网)是设置在消力池里辅助消能工,它具有良好的水力特性模型试验结果表明,消力池中设置拱网可大大降低消力池的规模文中研究了影响拱网水力特性的3个主要参数:收缩断面的弗劳德数Fr,网板高度h和网距L基于试验结果。

The arch mesh barrier is a stilling-basin appurtenance situated in the stilling basin,which has good hydraulic characteristics.Several physical hydraulic model investigations were conducted to evaluate the performance of the arch mesh barrier.The results of the model test indicate that the application of arch mesh barrier in the stilling basins can greatly decrease the scale of the energy dissipator at the toe of the dam.In this paper,three main parameters were studied,namely the Froude Number of the shrinkage section(Fr ),the height of barrier(h)and the distance from the contracted section to the barrier(L).Based on the data of the tests,the design method of an arch mesh barrier for a hydraulic jumping stilling basin is also presented.