Vanishing of mode B in the wake behind a rotationally oscillating circular cylinder
- 1 June 2002
- journal article
- research article
- Published by AIP Publishing in Physics of Fluids
- Vol. 14 (6) , 2021-2023
- https://doi.org/10.1063/1.1479344
Abstract
This Brief Communication presents a numerical investigation of the dimensionality of a flow behind a three-dimensional rotationally oscillating circular cylinder. These computations are performed at a Reynolds number Re =500, which is at a level where the mode B is the dominant three-dimensional instability. We show that a rotation of high enough amplitude makes the 3D instabilities vanish and brings the flow back to its nominal two-dimensional state.Keywords
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