Current Research | Offshore Engineering

Vortex-Induced Vibration of Two Tandem Flexible Cylinders

The interaction between cylindrical structures in tandem arrangement subject to vortex-induced vibration (VIV) is a common phenomenon in marine and civil engineering, such as risers, tension-leg platform (TLP) tendons, heat exchanger tubes and chimneys. When bluff structures are situated in the wake of other bluff bodies, their dynamic responses become very complex and different from the case where they are isolated. In this study, three-dimensional (3D) numerical simulations of VIV of two flexible cylinders in tandem arrangement are performed to investigate the effect of spacing on the VIV responses and the flow features.

Fig. 1. Sketch of physical configurations.

(b)
Fig. 2. Vortex shedding: (a) 3D vortex structure and (b) spanwise vorticity at z/L = 0.5.

Please refer to:

Enhao Wang, Qing Xiao. "Numerical simulation of vortex-induced vibration of a vertical riser in uniform and linearly sheared currents." Ocean Engineering. 121 (2016), 492-515.

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