CFD investigation of a novel gabion-based porous medium configuration for energy dissipation in ogee spillway stilling basins
Ogee spillways which provide very large discharge rates are extensively employed for civil engineering applications, but high velocity flows generated by Ogee spillways can be seriously harmful to downstream structures. This numerical investigation is conducted to assess the potential of adding porous media (uniform gabions and cross shaped gabions, with varying porosities: 30%, 40% and 50%) to the stilling basin at the bottom of ogee spillways to dissipate energy. The maximum improvement in relative energy dissipation compared with the smooth-bed configuration reached approximately 65% for…
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