Fluid Structure Interaction Modeling of the Dynamic of a Semi Submerged Buoy

Abstract: This thesis presents a study of buoy systems for wave’s energy by focusing on the development of a model in which modeling of a wave energy conversation is in operation. Throughout the thesis, the buoyancy and motion of the submerged body has been used to describe the wave-buoy interaction. The mathematical model for an investigating buoyancy and the dynamic heave response of this buoy under the two different load cases be considered as a single degree of freedom, which have natural characteristic, mass (M), stiffness (K) and damper (C) of the oscillating buoy which were estimated from the numerical method, because it is very important in the ocean wave stage and essential for the design of offshore installation. By using the Finite Element analysis in the software COMSOL Multiphysics 4.2.a, the fluid structure interactions established on two dimensional potential flow theories and linear are simulated and modeled. Then compared the numerical results which are obtained by transient harmonic oscillations with these of different geometric.