Now showing items 1-5 of 5

    • Influence of aeration induced by piers on the starting position of the flow aeration and extreme pressures in stepped spillways 

      Priebe, Priscila dos Santos; Ferla, Rute; Novakoski, Carolina Kuhn; Abreu, Aline Saupe; Teixeira, Eder Daniel; Prá, Mauricio Dai; Marques, Marcelo Giulian (2021) [Journal article]
      The operation of stepped spillways is limited by a range of discharges due to the risk of occurrence of the cavitation phenomenon and erosion on its steps. Since there is a demand for spillways with the possibility of ...
    • Longitudinal distribution of extreme pressures in a hydraulic jump downstream of a stepped spillway 

      Novakoski, Carolina Kuhn; Hampe, Roberta Ferrão; Conterato, Eliane; Marques, Marcelo Giulian; Teixeira, Eder Daniel (2017) [Journal article]
      The overflow system of a dam safely controls the water level of a reservoir. The design of these structures should predict the damage caused by the action of the turbulent flow to which they are subject to. The combination ...
    • Macro-turbulent characteristcs of pressures in hydraulic jump formed downstream of a stepped spillway 

      Novakoski, Carolina Kuhn; Lima, Guilherme Abud; Conterato, Eliane; Marques, Marcelo Giulian; Mees, Alexandre Augusto Alves; Teixeira, Eder Daniel (2017) [Journal article]
      Stilling basins are structures built at the base of the spillway to dissipate energy, by means of a hydraulic jump. Hydraulic jump is a turbulent phenomenon that causes large pressure fluctuation in the stilling basin ...
    • Stepped spillways with aerators : hydrodynamic pressures and air entrainment 

      Ferla, Rute; Novakoski, Carolina Kuhn; Priebe, Priscila dos Santos; Prá, Mauricio Dai; Teixeira, Eder Daniel; Marques, Marcelo Giulian (2021) [Journal article]
      The possibility of damage due to the phenomenon of cavitation leads the design of stepped spillways considering maximum specific discharges of 15 to 30 m2/s, a limit considerably lower than that practiced on smooth chutes. ...
    • Stepped spillway with pre-aeration by a deflector: flow characteristics 

      Novakoski, Carolina Kuhn; Ferla, Rute; Pra, Monica Dai; Canellas, Alba Valéria Brandão; Marques, Marcelo Giulian; Teixeira, Eder Daniel (2020) [Journal article]
      Stepped spillways aim to dissipate part of the upstream energy during the flow passage by the chute. However, the use of these structures is limited to a restrict range of specific discharges due to the risk of cavitation ...