In this work a coupled finite difference method and finite element method (FDM/FEM) is developed for numerical simulation of vortex induced vibration (VIV) phenomenon with an elastically deformable circular cylinder. The algorithm is based on a FDM with CIP (Constraint Interpolation Profile) method to fluid dynamics and a FEM to solve structural dynamics. Coupling between FDM and FEM is realized by BGS (Block Gauss-Seidel) procedure. IB (Immersed Boundary) method is applied for data transferring on the interface between fluid and structure. In this paper, numerical simulations of a 2-D circular cylinder at low Reynolds number are carried out. The effect of stiffness of the cylinder shell on the vortex shedding is investigated.

Volume Subject Area:
Ronald W. Yeung Honoring Symposium on Offshore and Ship Hydrodynamics
Topics:
Cylinders, Finite element methods, Simulation, Vortex-induced vibration, Circular cylinders, Computer simulation, Algorithms, Finite difference methods, Fluid dynamics, Fluids, Interpolation, Reynolds number, Shells, Stiffness, Structural dynamics, Vortex shedding
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