Unsteady load alleviation on highly flexible bio-inspired wings in longitudinally oscillating freestreams
Fuente:
arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866913636517150720 |
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| author | Martínez-Sánchez, Álvaro Achirica-Villameriel, Álvaro Doué, Nicolas Ferrand, Valérie Gowree, Erwin |
| author_facet | Martínez-Sánchez, Álvaro Achirica-Villameriel, Álvaro Doué, Nicolas Ferrand, Valérie Gowree, Erwin |
| contents | This study delves into the aerodynamic behavior of a highly flexible NACA 0012 aerofoil, drawing inspiration from avian feathers to handle a gust. We first examined unsteady flow on a rigid wing both experimentally and numerically and then explored the implications of introducing wing flexibility purely numerically. Our findings underscore the potential of composite materials in alleviating the oscillating aerodynamic forces on a wing under a streamwise gust. This behavior is attributed to its capacity to destabilize the laminar separation bubble, fostering a more stable turbulent boundary layer. While direct avian evidence remains limited, it is postulated that in nature, such mechanisms could mitigate undesired wing flapping, optimizing energy consumption in perturbed environments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_02399 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Unsteady load alleviation on highly flexible bio-inspired wings in longitudinally oscillating freestreams Martínez-Sánchez, Álvaro Achirica-Villameriel, Álvaro Doué, Nicolas Ferrand, Valérie Gowree, Erwin Fluid Dynamics This study delves into the aerodynamic behavior of a highly flexible NACA 0012 aerofoil, drawing inspiration from avian feathers to handle a gust. We first examined unsteady flow on a rigid wing both experimentally and numerically and then explored the implications of introducing wing flexibility purely numerically. Our findings underscore the potential of composite materials in alleviating the oscillating aerodynamic forces on a wing under a streamwise gust. This behavior is attributed to its capacity to destabilize the laminar separation bubble, fostering a more stable turbulent boundary layer. While direct avian evidence remains limited, it is postulated that in nature, such mechanisms could mitigate undesired wing flapping, optimizing energy consumption in perturbed environments. |
| title | Unsteady load alleviation on highly flexible bio-inspired wings in longitudinally oscillating freestreams |
| topic | Fluid Dynamics |
| url | https://arxiv.org/abs/2501.02399 |