Numerical simulation of flow-induced bi-directional oscillations

Flow-induced vibration (FIV) by vortex shedding behind a submerged cylinder can lead to damage of nuclear components. With respect to such a serious scenario, various experiments and numerical simulations have been conducted to predict the vibration phenomena. Especially in simulation, the immersed...

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Bibliographic Details
Published in:Journal of fluids and structures 2013-02, Vol.37, p.220-231
Main Authors: Lee, Hyun-Boo, Lee, Tae-Rin, Chang, Yoon-Suk
Format: Article
Language:English
Subjects:
Bi-directional motions
Circular cylinders
Computer simulation
Cylinders
Directly coupled Euler–Lagrange method
Flow-induced vibration
Fluid flow
Fluid-structure interaction
Fluids
Immersed finite element method
Mathematical models
Oscillations
Vibration
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Summary:Flow-induced vibration (FIV) by vortex shedding behind a submerged cylinder can lead to damage of nuclear components. With respect to such a serious scenario, various experiments and numerical simulations have been conducted to predict the vibration phenomena. Especially in simulation, the immersed finite element method (IFEM) is a promising approach to solve fluid-structure interaction problems because it needs less computational resources. In this paper, two-dimensional motions of cylinders are simulated by using IFEM to obtain their vibration characteristics. Three benchmark tests such as flow past a fixed circular cylinder, in-line oscillation of a circular cylinder and flow-induced vibration with uni-directional motion are performed to verify the proposed numerical method. Furthermore, bi-directional motions of two horizontally and vertically arranged cylinders as well as that of a single cylinder in fluid flow are analyzed, and then key findings are fully discussed.
ISSN:0889-9746
1095-8622
DOI:10.1016/j.jfluidstructs.2012.09.004