Submerged hydraulic jump: a computational analysis in different scales
ABSTRACT Advancements in computational capabilities have enabled engineers and scientists to numerically model complex turbulent phenomena such as hydraulic jumps. This research assesses the capability of numerically simulating a hydraulic jump that occurs in the UHE Porto Colômbia's stilling b...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Associação Brasileira de Recursos Hídricos
2024-02-01
|
| Series: | Revista Brasileira de Recursos Hídricos |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2318-03312024000100201&lng=en&tlng=en |
| _version_ | 1797293959890862080 |
|---|---|
| author | João Pedro Paludo Bocchi Daniela Guzzon Sanagiotto Eder Daniel Teixeira |
| author_facet | João Pedro Paludo Bocchi Daniela Guzzon Sanagiotto Eder Daniel Teixeira |
| author_sort | João Pedro Paludo Bocchi |
| collection | DOAJ |
| description | ABSTRACT Advancements in computational capabilities have enabled engineers and scientists to numerically model complex turbulent phenomena such as hydraulic jumps. This research assesses the capability of numerically simulating a hydraulic jump that occurs in the UHE Porto Colômbia's stilling basin at a flow rate of 4,000 m3/s. To achieve this, simulation results were compared with data from three hydraulic physical models (scales 1:32, 1:50, and 1:100) and full-scale measurements. The simulations employed the Ansys CFX solver, utilizing a Reynolds-Averaged Navier-Stokes (RANS) approach, the RNG κ-ε turbulence model, and the Volume of Fluid (VOF) method for air-water interactions. Various variables were analyzed, with satisfactory results for mean pressures, conjugated depths, roller length, water profile in less aerated areas, and mean velocity at the submerged hydraulic jump upstream section, with errors below 10%. However, the submerged hydraulic jump's start position and the representation of the water surface profile in the region near the jump toe yielded more disparate results. In conclusion, the methods and conditions applied in the simulations are apt for representing variables less impacted by aeration phenomena, establishing CFD simulations as a valuable tool for hydraulic jump analysis. |
| first_indexed | 2024-03-07T21:23:17Z |
| format | Article |
| id | doaj.art-ba4eb4da2cc74f71af0cc90d41a077d1 |
| institution | Directory Open Access Journal |
| issn | 2318-0331 |
| language | English |
| last_indexed | 2024-03-07T21:23:17Z |
| publishDate | 2024-02-01 |
| publisher | Associação Brasileira de Recursos Hídricos |
| record_format | Article |
| series | Revista Brasileira de Recursos Hídricos |
| spelling | doaj.art-ba4eb4da2cc74f71af0cc90d41a077d12024-02-27T07:44:21ZengAssociação Brasileira de Recursos HídricosRevista Brasileira de Recursos Hídricos2318-03312024-02-012910.1590/2318-0331.292420230089Submerged hydraulic jump: a computational analysis in different scalesJoão Pedro Paludo Bocchihttps://orcid.org/0000-0002-5518-931XDaniela Guzzon Sanagiottohttps://orcid.org/0000-0003-3708-4060Eder Daniel Teixeirahttps://orcid.org/0000-0001-7595-486XABSTRACT Advancements in computational capabilities have enabled engineers and scientists to numerically model complex turbulent phenomena such as hydraulic jumps. This research assesses the capability of numerically simulating a hydraulic jump that occurs in the UHE Porto Colômbia's stilling basin at a flow rate of 4,000 m3/s. To achieve this, simulation results were compared with data from three hydraulic physical models (scales 1:32, 1:50, and 1:100) and full-scale measurements. The simulations employed the Ansys CFX solver, utilizing a Reynolds-Averaged Navier-Stokes (RANS) approach, the RNG κ-ε turbulence model, and the Volume of Fluid (VOF) method for air-water interactions. Various variables were analyzed, with satisfactory results for mean pressures, conjugated depths, roller length, water profile in less aerated areas, and mean velocity at the submerged hydraulic jump upstream section, with errors below 10%. However, the submerged hydraulic jump's start position and the representation of the water surface profile in the region near the jump toe yielded more disparate results. In conclusion, the methods and conditions applied in the simulations are apt for representing variables less impacted by aeration phenomena, establishing CFD simulations as a valuable tool for hydraulic jump analysis.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2318-03312024000100201&lng=en&tlng=enHydraulic jumpSubmerged hydraulic jumpCFDRANS |
| spellingShingle | João Pedro Paludo Bocchi Daniela Guzzon Sanagiotto Eder Daniel Teixeira Submerged hydraulic jump: a computational analysis in different scales Revista Brasileira de Recursos Hídricos Hydraulic jump Submerged hydraulic jump CFD RANS |
| title | Submerged hydraulic jump: a computational analysis in different scales |
| title_full | Submerged hydraulic jump: a computational analysis in different scales |
| title_fullStr | Submerged hydraulic jump: a computational analysis in different scales |
| title_full_unstemmed | Submerged hydraulic jump: a computational analysis in different scales |
| title_short | Submerged hydraulic jump: a computational analysis in different scales |
| title_sort | submerged hydraulic jump a computational analysis in different scales |
| topic | Hydraulic jump Submerged hydraulic jump CFD RANS |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2318-03312024000100201&lng=en&tlng=en |
| work_keys_str_mv | AT joaopedropaludobocchi submergedhydraulicjumpacomputationalanalysisindifferentscales AT danielaguzzonsanagiotto submergedhydraulicjumpacomputationalanalysisindifferentscales AT ederdanielteixeira submergedhydraulicjumpacomputationalanalysisindifferentscales |