| Texto completo | |
| Autor(es): |
Assi, Gustavo R. S.
Número total de Autores: 1
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| Tipo de documento: | Artigo Científico |
| Fonte: | JOURNAL OF FLUIDS AND STRUCTURES; v. 133, p. 14-pg., 2025-03-01. |
| Resumo | |
An experimental investigation performed at moderate Reynolds numbers was set to study how a pair of tandem cylinders can be excited into flow-induced vibrations by different interference mechanisms as a function of longitudinal spacings varying from 2 to 10 diameters. Results showed that the downstream cylinder could develop vortex-induced vibration (VIV) caused by its own vortex shedding, wake-induced vibration (WIV) caused by a developed wake formed in the gap, and gap-flow-switching. A combination of these mechanisms appeared for cases under close proximity. For a specific spacing of 3 diameters, the vibration of the downstream cylinder was able to synchronize the vortex shedding from the upstream, fixed body. We call this mechanism "retro lock-in" since the vortex-formation process of a bluff body was governed by the dynamics of another body located further downstream. (AU) | |
| Processo FAPESP: | 11/00205-6 - Desenvolvimento de métodos de supressão de vibrações induzidas pelo escoamento em estruturas oceânicas |
| Beneficiário: | Gustavo Roque da Silva Assi |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 22/03698-8 - OTIC Centro de Inovação em Tecnologia Offshore |
| Beneficiário: | Gustavo Roque da Silva Assi |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa Centros de Pesquisa Aplicada |