Hydraulics of Stilling Basin with Flaring Gate Piers

The results of serial model tests on hydraulic characteristics and optimal configurations of stilling basin with flaring gate piers (FGP) are presented in this paper. The study reveals that the FGP stilling basin can markedly enhance energy dissipation comparing with the conventional stilling basin. The formuls for calculations of drag coefficients Δζ', hydraulic jump deep tailwater h_t, jump length L'_j, size of FGP as well as dissipaition rate are also provided.