The Simulation And Experimental Study Of Floating Pendulor Wave Energy Converter

Nowadays the global demand for energy is growing rapidly,the demand for renewable energy is also growing fastly.For China,which will be the world's largest country of energy consumption,it is highly urgent to do the research and development of efficient renewable energy equipment.There are a lot of exploitable ocean wave energy in China,and the wave energy near Zhoushan sea area is also quite abundant.For the purpose of developing local economy and satisfying energy demand,we developed a wave energy convertor suitable for wave conditions in Zhoushan sea area.The specific research contents include the following aspects:(1)Based on the theory of fluid mechanics,the paper analyzes the characteristics of water velocity distribution in the vertical direction of the wave,establishes the principle of using the floating pendulum to capture the wave energy near the water surface,and uses the slope to convert the horizontal velocity into vertical velocity.Invent a Near shore wave energy converter that can adapt to tidal changes.(2)A variety of structural floating pendulor-slope combination model test was carried out to find the best structural scheme,which verified the feasibility of the floating pendulum principle.The first-level wave capture efficiency of the model device is obtained by lifting the weight method,and the data support is provided for the verification of the simulation model.The wave energy is successfully converted into electric energy by the hydraulic device.(3)The CFD simulation method is built Based on 3D Unsteady Reynolds Average Navier-Storkes(RANS)equations of viscous uncompressible fluid,and on k-? upwind turbulent model and by means of the technology of moving grids mainly to analyze the hydrodynamic performance of floating pendulor capture wave energy.Study on the optimal parameters of device itself in Zhoushan sea area wave conditions,the initial design has been optimized to find a suitable set of the wave conditions of the resonance parameters of swing device floating in different output loads of energy capture,the force condition of the device for subsequent energy conversion system design and equipment design and manufacture to provide a reference.