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Indexed by:会议论文

Date of Publication:2012-06-17

Included Journals:EI、Scopus

Page Number:611-617

Abstract:Experiments and numerical simulations are carried out to investigate the flow-induced vibration of an elastically-supported, circular cylinder placed near a plane boundary. The flow field is visualized using the hydrogen bubble technique. Two modes of flow-induced oscillations are recognized, namely fore-backward oscillation at lower flow speeds, and transverse oscillation at higher flow speeds. In numerical simulations, the Navier-Stokes equations for unsteady incompressible viscous flow combined with a k-   turbulence model are solved via finite element method. Arbitrary Lagrangian-Eulerian (ALE) method using an overlapping grid system is used to capture the motion of the cylinder. Copyright ? 2012 by the International Society of Offshore and Polar Engineers (ISOPE).