### Abstract

We study the orientational behavior of a hinged cylinder suspended in a water tunnel in the presence of an incompressible flow with Reynolds number (Re), based on particle dimensions, ranging between 100 and 6000 and non-dimensional inertia of the body(I*) in the range 0.1-0.6. The cylinder displays four unique features, which include: steady orientation, random oscillations, periodic oscillations and autorotation.We illustrate these features displayed by the cylinder using a phase diagram which captures the observed phenomena as a function of Re and I*. We identify critical Re and I* to distinguish the different behaviors of the cylinders. We used the hydrogen bubble flow visualization technique to show vortex shedding structure in the cylinder's wake which results in these oscillations.

Original language | English |
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Title of host publication | Advances in Mathematical Fluid Mechanics |

Subtitle of host publication | Dedicated to Giovanni Paolo Galdi on the Occasion of his 60th Birthday |

Publisher | Springer Berlin Heidelberg |

Pages | 135-145 |

Number of pages | 11 |

ISBN (Print) | 9783642040672 |

DOIs | |

Publication status | Published - 1 Dec 2010 |

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### Keywords

- Autorotation
- Vortex Induced Oscillation
- Vortex Shedding

### Cite this

*Advances in Mathematical Fluid Mechanics: Dedicated to Giovanni Paolo Galdi on the Occasion of his 60th Birthday*(pp. 135-145). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-04068-9_8