Abstract The Downstream Surge Chamber of a pumped storage power station adopts impedance with an upper chamber layout. tailrace tunnel is connected the connecting pipe through right-angle bifurcated and bend. layout type special water flow conditions are complex. To study its hydraulic characteristics, three-dimensional field mathematical model at bottom surge established, variation law charact...

Abstract Fishway design not only takes into account the swimming abilities of target fishes, but also considers hydrodynamic characteristics within fishway. In this study, flow fields one vertical-slot fishway ( i.e. VSF), five T-shape fishways TSF-1~TSF-5) and two H-shape (i.e. HSF-1 HSF-2) are numerically simulated by solving three-dimensional Reynolds-averaged Navier-Stokes equations K-Omega...