Abstract
The interactions between flexible plates and fluids are important physical phenomena. A flag in wind is one of the most simplified and classical models for studying the problem. In this paper, we investigated the response of a flag in flow with an externally forced vibration by using flexible filaments and soap film. Experiments show that for a filament that is either in oscillation or stationary, the external forced vibration leads to its oscillation. A synchronization phenomenon occurs in the experiments. A small perturbation leads to a large response of flapping amplitude in response. The insight provided here is helpful to the applications in the flow control, energy harvesting, and bionic propulsion areas.
Original language | English |
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Article number | 017101 |
Number of pages | 14 |
Journal | Physics of Fluids |
Volume | 27 |
Issue number | 1 |
Early online date | 28 Jan 2015 |
DOIs | |
Publication status | E-pub ahead of print - 28 Jan 2015 |
Keywords
- flexible filament
- vibration
- rotating flows
- land transportation