SEMI-EMPIRICAL SOLUTION OF ARCH MESH BARRIER STILLING BASIN

摘要

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. Based on the experiments, the resistance coefficient of the barrier was studied and the momentum equation of arch mesh barrier-stilling basin was solved. An empirical formula for calculates the conjugate depths Were given in this paper. The semi-empirical method of designing an arch mesh barrier for hydraulic jumping stilling basin was presented in this paper.