Numerical simulation of an elementary Vortex-Induced-Vibration problem by using fully-coupled fluid solid system computation
Abstract
Numerical simulation of Vortex-Induced-Vibrations (VIV) of a rigid circular elastically-mounted cylinder submitted to a fluid cross-flow has been extensively studied over the past decades, both experimentally and numerically, because of its theoretical and practical interest for understanding Flow-Induced-Vibrations (FIV) problems. In this context, the present article aims to expose a numerical study based on fully-coupled fluid-solid computations compared to previously published work [34], [36]. The computational procedure relies on a partitioned method ensuring the coupling between fluid and structure solvers. The fluid solver involves a moving mesh formulation for simulation of the fluid structure interface motion. Energy exchanges between fluid and solid models are ensured through convenient numerical schemes. The present study is devoted to a low Reynolds number configuration. Cylinder motion magnitude, hydrodynamic forces, oscillation frequency and fluid vortex shedding modes are investigated and the “lock-in” phenomenon is reproduced numerically. These numerical results are proposed for code validation purposes before investigating larger industrial applications such as configurations involving tube arrays under cross-flows [4].
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microscopy
Engineering (General). Civil engineering (General)
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Electrical engineering. Electronics. Nuclear engineering
Descriptive and experimental mechanics
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physics
motor vehicles. aeronautics. astronautics
mathematics
electronic computers. computer science
mining engineering. metallurgy
transportation and communications
astrophysics
cellular telephone services industry. wireless telephone industry
geodesy
canals and inland navigation. waterways
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