Modelling of Cantilever-Based Flow Energy Harvesters Featuring C-Shaped Vibration Inducers: The Role of the Fluid/Beam Interaction
Flow Energy Harvesters (FEHs), equipped with piezoelectric active layers, are designed to extract energy from non-pulsating flows. FEHs featuring cantilevers with tip-mounted Vibration Inducers (VIs) are designed to develop a galloping motion. In this paper, we present the modelling of a recently in...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/1/416 |
| _version_ | 1797626263214489600 |
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| author | Giampiero Sciortino Valentina Lombardi Pietro Prestininzi |
| author_facet | Giampiero Sciortino Valentina Lombardi Pietro Prestininzi |
| author_sort | Giampiero Sciortino |
| collection | DOAJ |
| description | Flow Energy Harvesters (FEHs), equipped with piezoelectric active layers, are designed to extract energy from non-pulsating flows. FEHs featuring cantilevers with tip-mounted Vibration Inducers (VIs) are designed to develop a galloping motion. In this paper, we present the modelling of a recently introduced VI shape, featuring semitubular-shaped winglets, which do not produce a wake interacting with the cantilever. Such peculiarity allows (i) to exploit the contribution of the wake to the formation of the lift, therefore opening to a more compact design; (ii) its performance to be analyzed by means of simple two-dimensional Computational Fluid Dynamics (CFD) simulations. By comparison with experimental data, we show that the minimal framework for the modelling of such new class of VIs needs to account for both the direct action of the fluid onto the cantilever and the drag on the VI, which are usually negligible for other VI shapes. |
| first_indexed | 2024-03-11T10:07:52Z |
| format | Article |
| id | doaj.art-72570bce09864ad09cccdb7decc067af |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T10:07:52Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-72570bce09864ad09cccdb7decc067af2023-11-16T14:56:45ZengMDPI AGApplied Sciences2076-34172022-12-0113141610.3390/app13010416Modelling of Cantilever-Based Flow Energy Harvesters Featuring C-Shaped Vibration Inducers: The Role of the Fluid/Beam InteractionGiampiero Sciortino0Valentina Lombardi1Pietro Prestininzi2Engineering Department, Roma Tre University, 00146 Rome, ItalyEngineering Department, Roma Tre University, 00146 Rome, ItalyEngineering Department, Roma Tre University, 00146 Rome, ItalyFlow Energy Harvesters (FEHs), equipped with piezoelectric active layers, are designed to extract energy from non-pulsating flows. FEHs featuring cantilevers with tip-mounted Vibration Inducers (VIs) are designed to develop a galloping motion. In this paper, we present the modelling of a recently introduced VI shape, featuring semitubular-shaped winglets, which do not produce a wake interacting with the cantilever. Such peculiarity allows (i) to exploit the contribution of the wake to the formation of the lift, therefore opening to a more compact design; (ii) its performance to be analyzed by means of simple two-dimensional Computational Fluid Dynamics (CFD) simulations. By comparison with experimental data, we show that the minimal framework for the modelling of such new class of VIs needs to account for both the direct action of the fluid onto the cantilever and the drag on the VI, which are usually negligible for other VI shapes.https://www.mdpi.com/2076-3417/13/1/416fluid–structure interactionflow energy harvestervibration inducersbluff body fluid dynamicsdrag and lift |
| spellingShingle | Giampiero Sciortino Valentina Lombardi Pietro Prestininzi Modelling of Cantilever-Based Flow Energy Harvesters Featuring C-Shaped Vibration Inducers: The Role of the Fluid/Beam Interaction Applied Sciences fluid–structure interaction flow energy harvester vibration inducers bluff body fluid dynamics drag and lift |
| title | Modelling of Cantilever-Based Flow Energy Harvesters Featuring C-Shaped Vibration Inducers: The Role of the Fluid/Beam Interaction |
| title_full | Modelling of Cantilever-Based Flow Energy Harvesters Featuring C-Shaped Vibration Inducers: The Role of the Fluid/Beam Interaction |
| title_fullStr | Modelling of Cantilever-Based Flow Energy Harvesters Featuring C-Shaped Vibration Inducers: The Role of the Fluid/Beam Interaction |
| title_full_unstemmed | Modelling of Cantilever-Based Flow Energy Harvesters Featuring C-Shaped Vibration Inducers: The Role of the Fluid/Beam Interaction |
| title_short | Modelling of Cantilever-Based Flow Energy Harvesters Featuring C-Shaped Vibration Inducers: The Role of the Fluid/Beam Interaction |
| title_sort | modelling of cantilever based flow energy harvesters featuring c shaped vibration inducers the role of the fluid beam interaction |
| topic | fluid–structure interaction flow energy harvester vibration inducers bluff body fluid dynamics drag and lift |
| url | https://www.mdpi.com/2076-3417/13/1/416 |
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