Author(s): Yang Minand; Fan Jing
Linked Author(s):
Keywords: Rch mesh barrier; Hydraulic characteristics; Stilling basin; Resistance coefficient
Abstract: The arch mesh barrier is an appurtenance situated in the stilling basin, which has better hydraulic characteristics. Several physical hydraulic model investigations have been conducted to evaluate the performance of the arch mesh barrier. The results of the model tests 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. Three main parameters, the Froude Number of the contracted section Fr, the height of barrier h and the distance from the contracted section L were studied. Based on the experimental date, the resistance coefficient of the barrier was obtained and the momentum equation of arch mesh barrier-stilling basin was solved. An empirical formula for calculating the conjugate depths is given in this paper. The semi-empirical method of designing an arch mesh barrier for hydraulic jump stilling basin is present in this paper.
Year: 2005