Galloping instability and control of a rigid pendulum in a flowing soap film
MAZZINO, Andrea
Dipartimento di Ingegneria Civile, Chimica e Ambientale [Genova] [DICCA]
INFN and CINFAI Consortium, Genova Section
Dipartimento di Ingegneria Civile, Chimica e Ambientale [Genova] [DICCA]
INFN and CINFAI Consortium, Genova Section
MAZZINO, Andrea
Dipartimento di Ingegneria Civile, Chimica e Ambientale [Genova] [DICCA]
INFN and CINFAI Consortium, Genova Section
< Reduce
Dipartimento di Ingegneria Civile, Chimica e Ambientale [Genova] [DICCA]
INFN and CINFAI Consortium, Genova Section
Language
en
Article de revue
This item was published in
Journal of Fluids and Structures. 2015-07, vol. 56, p. 124-133
Elsevier
English Abstract
A pendulum suspended in a fast flowing soap film may show sustained oscillations. The conditions necessary for self excited motion to occur are outlined: a flow velocity above a threshold value along with geometrical ...Read more >
A pendulum suspended in a fast flowing soap film may show sustained oscillations. The conditions necessary for self excited motion to occur are outlined: a flow velocity above a threshold value along with geometrical constraints. The role of vortex shedding is discussed, and the observed instability is shown to be well described by the galloping instability. Experimental results are supported by numerical simulations. Furthermore, we observe that the instability may be suppressed by attaching a long enough filament to the rear of the pendulum.Read less <
English Keywords
Fluid-structure interaction
Galloping
Flow Control
Origin
Hal imported