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- W2099013642 abstract "The two-dimensional fluid-structure numerical model was developed to investigate the VIV suppression effect of the fined cylinder in subcritical flow (2000<Re<12000). The simulation of the flow field is performed by solving RANS equations with standard k-ε turbulence model. And the finned cylinder is modeled as a mass-spring system. The fluid-structure interaction of the finned cylinder in a uniform stream is numerically simulated by applying the displacement and stress iterative computation on the fluid-structure interfaces. The Arbitrary Lagrangian Eulerian (ALE) method and leader-follower method were combined together to keep a good quality of the fluid domain mesh for large displacements of fluid-structure interface. The vortex induced vibration of smooth cylinder was firstly simulated and compared with the experimental and numerical results of available literatures. The cylinder with Δ60-fins (consists of three splitter plates of 0.2D depth with splitter plate angle of 60° equally spaced on the cylinder surface) was investigated. The vortex shedding mode, vibration response, vibration frequency, and lifting force for the cylinder with Δ60-fins were analyzed and compared with smooth cylinder. The numerical results show that the cylinder with Δ60-fins can significantly interfere the vortex shedding and synchronization by reducing the lateral spacing of the initial large eddy. The remarkable decrease of response amplitude for cylinder with Δ60-fins is found." @default.
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- W2099013642 date "2014-06-08" @default.
- W2099013642 modified "2023-09-27" @default.
- W2099013642 title "Investigation of VIV Suppression Effect of the Finned Cylinder in Subcritical Flow" @default.
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- W2099013642 doi "https://doi.org/10.1115/omae2014-23369" @default.
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