Passive oscillations of two tandem flexible filaments in a flowing soap film.
The passive oscillations of flexible filaments in a flowing soap film were investigated to learn the serial interaction between them. When arranged in tandem, the downstream filament flaps at the same frequency as that of the upstream one, but with a larger amplitude, whereas the upstream one is almost unaffected compared to the single filament case. The data analysis shows the downstream filament indeed extracts energy from the vortex street and receives greater force than the upstream one or a single filament in a uniform flow.
Jia
Lai-Bing
LB
Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui, China 230027.
Yin
Xie-Zhen
XZ
D000818:Animals; D001522:Behavior, Animal; D005399:Fishes; D008954:Models, Biological; D008956:Models, Chemical; D008962:Models, Theoretical; D012915:Soaps; D013550:Swimming
D012915:Soaps