Flow energy harvesting by fluttering slender bodies in axial currents
International audience Coupled fluid-solid instabilities offer promising perspectives for the development of new technologies to harvest energy from water currents. A fundamental study of these instabilities and of the impact of the damping induced by the energy harvesting on the fluid-solid system...
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ftccsdartic:oai:HAL:hal-01025973v1 2023-05-15T14:21:50+02:00 Flow energy harvesting by fluttering slender bodies in axial currents Michelin, S. Singh, K. de Langre, E. Laboratoire d'hydrodynamique (LadHyX) École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS) Rotterdam, Netherlands 2011-05-19 https://hal-polytechnique.archives-ouvertes.fr/hal-01025973 https://doi.org/10.1115/omae2011-49922 en eng HAL CCSD American Society of Mechanical Engineers info:eu-repo/semantics/altIdentifier/doi/10.1115/omae2011-49922 hal-01025973 https://hal-polytechnique.archives-ouvertes.fr/hal-01025973 doi:10.1115/omae2011-49922 Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE 30th International Conference on Ocean, Offshore and Arctic Engineering https://hal-polytechnique.archives-ouvertes.fr/hal-01025973 30th International Conference on Ocean, Offshore and Arctic Engineering, May 2011, Rotterdam, Netherlands. pp.721-727, ⟨10.1115/omae2011-49922⟩ info:eu-repo/semantics/conferenceObject Conference papers 2011 ftccsdartic https://doi.org/10.1115/omae2011-49922 2023-03-27T15:47:53Z International audience Coupled fluid-solid instabilities offer promising perspectives for the development of new technologies to harvest energy from water currents. A fundamental study of these instabilities and of the impact of the damping induced by the energy harvesting on the fluid-solid system is essential to identify promising configurations, quantify energy harvesting potential and characterize possible design optimization. In this work, we focus on the dynamics of long flexible cylinders placed in axial currents. It is well established that above a critical velocity threshold the flexible cylinder's rest position becomes unstable to flutter and self-sustained limit-cycle oscillations can develop. A fraction of the solid kinetic energy can then be converted into electrical form, acting as a dissipative mechanism on the fluid-solid system. The non-linear dynamics of the dissipative system are studied in this paper using a reduced-order model of the deformable cylinder in the form of a bi-articulated system of two rigid cylinders with energy harvesting at each articulation. The impact of energy extraction on the system's properties and the optimal placement of energy harvesters are then analyzed and discussed. It is shown that optimal energy harvesting only involves a single harvester at the upstream end, away from the region of useful curvature that drives the instability mechanism at the origin of the self-sustained oscillations. Copyright © 2011 by ASME. Conference Object Arctic Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Volume 5: Ocean Space Utilization; Ocean Renewable Energy 721 727 |
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Open Polar |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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ftccsdartic |
language |
English |
description |
International audience Coupled fluid-solid instabilities offer promising perspectives for the development of new technologies to harvest energy from water currents. A fundamental study of these instabilities and of the impact of the damping induced by the energy harvesting on the fluid-solid system is essential to identify promising configurations, quantify energy harvesting potential and characterize possible design optimization. In this work, we focus on the dynamics of long flexible cylinders placed in axial currents. It is well established that above a critical velocity threshold the flexible cylinder's rest position becomes unstable to flutter and self-sustained limit-cycle oscillations can develop. A fraction of the solid kinetic energy can then be converted into electrical form, acting as a dissipative mechanism on the fluid-solid system. The non-linear dynamics of the dissipative system are studied in this paper using a reduced-order model of the deformable cylinder in the form of a bi-articulated system of two rigid cylinders with energy harvesting at each articulation. The impact of energy extraction on the system's properties and the optimal placement of energy harvesters are then analyzed and discussed. It is shown that optimal energy harvesting only involves a single harvester at the upstream end, away from the region of useful curvature that drives the instability mechanism at the origin of the self-sustained oscillations. Copyright © 2011 by ASME. |
author2 |
Laboratoire d'hydrodynamique (LadHyX) École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS) |
format |
Conference Object |
author |
Michelin, S. Singh, K. de Langre, E. |
spellingShingle |
Michelin, S. Singh, K. de Langre, E. Flow energy harvesting by fluttering slender bodies in axial currents |
author_facet |
Michelin, S. Singh, K. de Langre, E. |
author_sort |
Michelin, S. |
title |
Flow energy harvesting by fluttering slender bodies in axial currents |
title_short |
Flow energy harvesting by fluttering slender bodies in axial currents |
title_full |
Flow energy harvesting by fluttering slender bodies in axial currents |
title_fullStr |
Flow energy harvesting by fluttering slender bodies in axial currents |
title_full_unstemmed |
Flow energy harvesting by fluttering slender bodies in axial currents |
title_sort |
flow energy harvesting by fluttering slender bodies in axial currents |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://hal-polytechnique.archives-ouvertes.fr/hal-01025973 https://doi.org/10.1115/omae2011-49922 |
op_coverage |
Rotterdam, Netherlands |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE 30th International Conference on Ocean, Offshore and Arctic Engineering https://hal-polytechnique.archives-ouvertes.fr/hal-01025973 30th International Conference on Ocean, Offshore and Arctic Engineering, May 2011, Rotterdam, Netherlands. pp.721-727, ⟨10.1115/omae2011-49922⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1115/omae2011-49922 hal-01025973 https://hal-polytechnique.archives-ouvertes.fr/hal-01025973 doi:10.1115/omae2011-49922 |
op_doi |
https://doi.org/10.1115/omae2011-49922 |
container_title |
Volume 5: Ocean Space Utilization; Ocean Renewable Energy |
container_start_page |
721 |
op_container_end_page |
727 |
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1766294543800467456 |