Author(s): Zhao Zhou

Linked Author(s): Zhao Zhou

Keywords: Deep tail water; Physical model; Hydraulic jump; Auxiliary energy dissipator

Abstract: IAimed at the insufficient energy dissipation inside the deep tail water stilling basin, this paper successively added auxiliary energy dissipators (baffle blocks, T shaped pier and chute sill blocks) inside the stilling basin and then comparatively investigate the corresponding influence upon the energy dissipation on a physical model. Results show that baffle blocks and T shaped piers can only adjust the moving flow in shallow tail water condition but can’t exert well effect in view of limited geometrical scale. And chute sill blocks above overflow weir surface can effectively force the moving inflow to deflect and offset in the upper regions of stilling basin, thus significantly shortening hydraulic jump length and increasing energy dissipation inside the deep tail water stilling basin. The common hydraulic jump with water drop is totally eliminated outside the stilling basin. Keywords: Deep tail water; Physical model; Hydraulic jump; Auxiliary energy dissipator

DOI: https://doi.org/10.3850/IAHR-39WC252171192022652

Year: 2022