CFD Validation of a Model Wind Turbine by Means of Improved and Delayed Detached Eddy Simulation in OpenFOAM
With the ongoing increase in the size of wind turbines, experimental investigations have become more complicated and expensive. Therefore, computational models have proven to be a viable solution for design purposes. This article aims to validate CFD simulations of an experimental model wind turbine...
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| Format: | Article |
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MDPI AG
2019-04-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/12/7/1306 |
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| author | Camilo A. Sedano Frederik Berger Hamid Rahimi Omar D. Lopez Mejia Martin Kühn Bernhard Stoevesandt |
| author_facet | Camilo A. Sedano Frederik Berger Hamid Rahimi Omar D. Lopez Mejia Martin Kühn Bernhard Stoevesandt |
| author_sort | Camilo A. Sedano |
| collection | DOAJ |
| description | With the ongoing increase in the size of wind turbines, experimental investigations have become more complicated and expensive. Therefore, computational models have proven to be a viable solution for design purposes. This article aims to validate CFD simulations of an experimental model wind turbine (MoWiTO 1.8) using Delayed Detached Eddy Simulation (DDES) and Improved DDES (IDDES) turbulence modelling approaches. For the purpose of validation, integral quantities (such as power, thrust, torque and blade-root bending moment in the flapwise direction) measured in the wind tunnel are compared with numerical results obtained with OpenFOAM. In general, the computational results show a very good agreement with the measurements for most of the monitored quantities. In particular, the blade-root bending moment presents the largest difference, taking into account that the simulation assumes the turbine blades are rigid. Nevertheless, the simulation does achieve in recreating the turbulent behavior as can be evidenced by the Power Spectral Density graphs, and the wake’s velocity measurements. In general, the IDDES turbulent model achieves a better agreement to the experimental results, while maintaining a very similar computational time as the DDES model. |
| first_indexed | 2024-04-13T06:18:15Z |
| format | Article |
| id | doaj.art-9745dc4b07e24149ab88589b4d6761d7 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-13T06:18:15Z |
| publishDate | 2019-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-9745dc4b07e24149ab88589b4d6761d72022-12-22T02:58:44ZengMDPI AGEnergies1996-10732019-04-01127130610.3390/en12071306en12071306CFD Validation of a Model Wind Turbine by Means of Improved and Delayed Detached Eddy Simulation in OpenFOAMCamilo A. Sedano0Frederik Berger1Hamid Rahimi2Omar D. Lopez Mejia3Martin Kühn4Bernhard Stoevesandt5Fraunhofer IWES, Küpkersweg 70, 26129 Oldenburg, GermanyInstitute of Physics, ForWind—University of Oldenburg, Küpkersweg 70, 26129 Oldenburg, GermanyFraunhofer IWES, Küpkersweg 70, 26129 Oldenburg, GermanyDepartment of Mechanical Engineering, Universidad de los Andes, Cra 1 Este N 19A-40, Bogotá 111711, ColombiaInstitute of Physics, ForWind—University of Oldenburg, Küpkersweg 70, 26129 Oldenburg, GermanyFraunhofer IWES, Küpkersweg 70, 26129 Oldenburg, GermanyWith the ongoing increase in the size of wind turbines, experimental investigations have become more complicated and expensive. Therefore, computational models have proven to be a viable solution for design purposes. This article aims to validate CFD simulations of an experimental model wind turbine (MoWiTO 1.8) using Delayed Detached Eddy Simulation (DDES) and Improved DDES (IDDES) turbulence modelling approaches. For the purpose of validation, integral quantities (such as power, thrust, torque and blade-root bending moment in the flapwise direction) measured in the wind tunnel are compared with numerical results obtained with OpenFOAM. In general, the computational results show a very good agreement with the measurements for most of the monitored quantities. In particular, the blade-root bending moment presents the largest difference, taking into account that the simulation assumes the turbine blades are rigid. Nevertheless, the simulation does achieve in recreating the turbulent behavior as can be evidenced by the Power Spectral Density graphs, and the wake’s velocity measurements. In general, the IDDES turbulent model achieves a better agreement to the experimental results, while maintaining a very similar computational time as the DDES model.https://www.mdpi.com/1996-1073/12/7/1306computational fluid dynamicsOpenFOAMDDESMoWiTO 1.8wind turbine aerodynamics |
| spellingShingle | Camilo A. Sedano Frederik Berger Hamid Rahimi Omar D. Lopez Mejia Martin Kühn Bernhard Stoevesandt CFD Validation of a Model Wind Turbine by Means of Improved and Delayed Detached Eddy Simulation in OpenFOAM Energies computational fluid dynamics OpenFOAM DDES MoWiTO 1.8 wind turbine aerodynamics |
| title | CFD Validation of a Model Wind Turbine by Means of Improved and Delayed Detached Eddy Simulation in OpenFOAM |
| title_full | CFD Validation of a Model Wind Turbine by Means of Improved and Delayed Detached Eddy Simulation in OpenFOAM |
| title_fullStr | CFD Validation of a Model Wind Turbine by Means of Improved and Delayed Detached Eddy Simulation in OpenFOAM |
| title_full_unstemmed | CFD Validation of a Model Wind Turbine by Means of Improved and Delayed Detached Eddy Simulation in OpenFOAM |
| title_short | CFD Validation of a Model Wind Turbine by Means of Improved and Delayed Detached Eddy Simulation in OpenFOAM |
| title_sort | cfd validation of a model wind turbine by means of improved and delayed detached eddy simulation in openfoam |
| topic | computational fluid dynamics OpenFOAM DDES MoWiTO 1.8 wind turbine aerodynamics |
| url | https://www.mdpi.com/1996-1073/12/7/1306 |
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