CFD simulation of flow behind overflooded obstacle
This paper deals with studying of two topics – measuring of velocity profile deformation behind a over-flooded construction and modelling of this velocity profile deformation by computational fluid dynamics (CFD). Numerical simulations with an unsteady RANS models - Standard k-ε, Realizable k-ε, Sta...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sciendo
2018-12-01
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| Series: | Journal of Hydrology and Hydromechanics |
| Subjects: | |
| Online Access: | https://doi.org/10.2478/johh-2018-0028 |
| _version_ | 1819022459748220928 |
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| author | Velísková Yvetta Chára Zdeněk Schügerl Radoslav Dulovičová Renáta |
| author_facet | Velísková Yvetta Chára Zdeněk Schügerl Radoslav Dulovičová Renáta |
| author_sort | Velísková Yvetta |
| collection | DOAJ |
| description | This paper deals with studying of two topics – measuring of velocity profile deformation behind a over-flooded construction and modelling of this velocity profile deformation by computational fluid dynamics (CFD). Numerical simulations with an unsteady RANS models - Standard k-ε, Realizable k-ε, Standard k-ω and Reynolds stress models (ANSYS Fluent v.18) and experimental measurements in a laboratory flume (using ADV) were performed. Results of both approaches showed and affirmed presence of velocity profile deformation behind the obstacle, but some discrepancies between the measured and simulated values were also observed. With increasing distance from the obstacle, the differences between the simulation and the measured data increase and the results of the numerical models are no longer usable. |
| first_indexed | 2024-12-21T04:23:20Z |
| format | Article |
| id | doaj.art-b73bd70b4e4f4bafa5f90ac8c3e4cbf6 |
| institution | Directory Open Access Journal |
| issn | 0042-790X |
| language | English |
| last_indexed | 2024-12-21T04:23:20Z |
| publishDate | 2018-12-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Journal of Hydrology and Hydromechanics |
| spelling | doaj.art-b73bd70b4e4f4bafa5f90ac8c3e4cbf62022-12-21T19:16:06ZengSciendoJournal of Hydrology and Hydromechanics0042-790X2018-12-0166444845610.2478/johh-2018-0028johh-2018-0028CFD simulation of flow behind overflooded obstacleVelísková Yvetta0Chára Zdeněk1Schügerl Radoslav2Dulovičová Renáta3Institute of Hydrology of the Slovak Academy of Sciences, Dúbravská cesta 9, 841 04Bratislava, Slovakia.Institute of Hydrodynamics of the Czech Academy of Sciences, v. v. i., Pod Patankou 30/5, 166 12Prague 6, Czech Republic.Institute of Hydrology of the Slovak Academy of Sciences, Dúbravská cesta 9, 841 04Bratislava, Slovakia.Institute of Hydrology of the Slovak Academy of Sciences, Dúbravská cesta 9, 841 04Bratislava, Slovakia.This paper deals with studying of two topics – measuring of velocity profile deformation behind a over-flooded construction and modelling of this velocity profile deformation by computational fluid dynamics (CFD). Numerical simulations with an unsteady RANS models - Standard k-ε, Realizable k-ε, Standard k-ω and Reynolds stress models (ANSYS Fluent v.18) and experimental measurements in a laboratory flume (using ADV) were performed. Results of both approaches showed and affirmed presence of velocity profile deformation behind the obstacle, but some discrepancies between the measured and simulated values were also observed. With increasing distance from the obstacle, the differences between the simulation and the measured data increase and the results of the numerical models are no longer usable.https://doi.org/10.2478/johh-2018-0028velocity profilecomputational fluid dynamics (cfd)free surface flowbridgeadvlaboratory flumenumerical simulationrans models |
| spellingShingle | Velísková Yvetta Chára Zdeněk Schügerl Radoslav Dulovičová Renáta CFD simulation of flow behind overflooded obstacle Journal of Hydrology and Hydromechanics velocity profile computational fluid dynamics (cfd) free surface flow bridge adv laboratory flume numerical simulation rans models |
| title | CFD simulation of flow behind overflooded obstacle |
| title_full | CFD simulation of flow behind overflooded obstacle |
| title_fullStr | CFD simulation of flow behind overflooded obstacle |
| title_full_unstemmed | CFD simulation of flow behind overflooded obstacle |
| title_short | CFD simulation of flow behind overflooded obstacle |
| title_sort | cfd simulation of flow behind overflooded obstacle |
| topic | velocity profile computational fluid dynamics (cfd) free surface flow bridge adv laboratory flume numerical simulation rans models |
| url | https://doi.org/10.2478/johh-2018-0028 |
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