Vortical similarities across laminar and turbulent extreme gust encounters
Fuente:
arXiv
Salvato in:
| Autori principali: | , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2026
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866908926044274688 |
|---|---|
| author | Odaka, Hiroto Lopez-Doriga, Barbara Taira, Kunihiko |
| author_facet | Odaka, Hiroto Lopez-Doriga, Barbara Taira, Kunihiko |
| contents | This study uncovers a striking similarity between massively separated laminar and turbulent flows that develop over a square wing during extreme vortex gust encounters. The evolving large-scale, vortical core structures responsible for significant transient lift variations exhibit remarkable similarity across Re = 600 and 10,000. The formation of these structures is attributed to a substantial gust-induced vorticity flux produced at the wing surface, resulting in shared large-scale topological features between the low- and high-Reynolds-number flows. Although fine-scale vortical structures quickly emerge in the Re = 10,000 case, the large-scale structures identified by scale decomposition of the turbulent flow resemble those observed at Re = 600. These findings suggest that large-scale vortical features present in laminar extreme aerodynamic flows provide key insights into their higher Reynolds number counterparts, potentially reducing the complexity of flow modeling and control for extreme aerodynamics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_02472 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Vortical similarities across laminar and turbulent extreme gust encounters Odaka, Hiroto Lopez-Doriga, Barbara Taira, Kunihiko Fluid Dynamics This study uncovers a striking similarity between massively separated laminar and turbulent flows that develop over a square wing during extreme vortex gust encounters. The evolving large-scale, vortical core structures responsible for significant transient lift variations exhibit remarkable similarity across Re = 600 and 10,000. The formation of these structures is attributed to a substantial gust-induced vorticity flux produced at the wing surface, resulting in shared large-scale topological features between the low- and high-Reynolds-number flows. Although fine-scale vortical structures quickly emerge in the Re = 10,000 case, the large-scale structures identified by scale decomposition of the turbulent flow resemble those observed at Re = 600. These findings suggest that large-scale vortical features present in laminar extreme aerodynamic flows provide key insights into their higher Reynolds number counterparts, potentially reducing the complexity of flow modeling and control for extreme aerodynamics. |
| title | Vortical similarities across laminar and turbulent extreme gust encounters |
| topic | Fluid Dynamics |
| url | https://arxiv.org/abs/2603.02472 |