Analysis of hydraulic parameters in determining the occurrence of cavitation in the spillways of the Furnas, Luiz Carlos Barreto de Carvalho and Batalha hydroelectric power plants

Autor: Aline Saupe Abreu, Carolina Kuhn Novakoski, Priscila dos Santos Priebe, Edgar Fernando Trierweiler Neto, Eder Daniel Teixeira, Marcelo Giulian Marques, Mauricio Dai Prá

Publikováno v: Revista Brasileira de Recursos Hídricos, Vol 29 (2024)

ABSTRACT The hydrodynamic conditions to which hydraulic structures such as spillways and stilling basins of dams are submitted under given conditions favor the occurrence of cavitation, damaging the concrete surfaces. This damage may be intensified b

Externí odkaz: https://doaj.org/article/21d321dc85bc49e485252293a77b18bc

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

Autor: Priscila dos Santos Priebe, Rute Ferla, Carolina Kuhn Novakoski, Aline Saupe Abreu, Eder Daniel Teixeira, Mauricio Dai Prá, Marcelo Giulian Marques

Publikováno v: Revista Brasileira de Recursos Hídricos, Vol 26 (2021)

ABSTRACT 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 overflow of greater dis

Externí odkaz: https://doaj.org/article/0cacf65895e34d7cb2d21cec8d60f618

Stepped spillway with pre-aeration by a deflector: flow characteristics

Autor: Carolina Kuhn Novakoski, Rute Ferla, Maurício Dai Prá, Alba Valéria Brandão Canellas, Marcelo Giulian Marques, Eder Daniel Teixeira

Publikováno v: Revista Brasileira de Recursos Hídricos, Vol 25 (2020)

ABSTRACT 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 damage. As the air

Externí odkaz: https://doaj.org/article/e874bbcb766545898796b79f4e13fd27

Macro-turbulent characteristcs of pressures in hydraulic jump formed downstream of a stepped spillway

Autor: Carolina Kuhn Novakoski, Eliane Conterato, Marcelo Marques, Eder Daniel Teixeira, Guilherme Abud Lima, Alexandre Mees

Publikováno v: Revista Brasileira de Recursos Hídricos, Vol 22

ABSTRACT 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 bottom, and can damage

Externí odkaz: https://doaj.org/article/7ed6cc8be744428ab83c53fecd762c2b

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

Autor: Marcelo Giulian Marques, Priscila dos Santos Priebe, Aline Saupe Abreu, Maurício Dai Prá, Carolina Kuhn Novakoski, Eder Daniel Teixeira, Rute Ferla

Publikováno v: Revista Brasileira de Recursos Hídricos, Vol 26 (2021)
RBRH v.26 2021
RBRH
Associação Brasileira de Recursos Hídricos (ABRH)
instacron:ABRH
RBRH, Volume: 26, Article number: e13, Published: 28 MAY 2021
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

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 overflow of greater discharges,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cff9c5dade0f5f1a1e9b56faad2721b6
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2318-03312021000100211&tlng=en