Abstract
Abstract The oscillating buoy wave energy converter (OBWEC) captures wave energy through the undulating movement of the buoy in the waves. In the process of capturing wave energy, the hydrodynamic performance of the buoy plays an important role. This paper designed the “Haida No. 1” OBWEC, in which the buoy adopts a form of swinging motion. In order to further improve the hydrodynamic performance of the buoy, a 2D numerical wave tank (NWT) model is established using ADINA software based on the working principle of the device. According to the motion equation of the buoy in the waves, the influence of the buoy shape, arm length, tilt angle, buoy draft, buoy width, wave height and Power Take-off (PTO) damping on the hydrodynamic performance of the buoy is studied. Finally, a series of physical experiments are performed on the device in a laboratory pool. The experimental results verify the consistency of the numerical results. The research results indicate that the energy conversion efficiency of the device can be improved by optimizing the hydrodynamic performance of the buoy. However, the absorption efficiency of a single buoy for wave energy is limited, so it is very difficult to achieve full absorption of wave energy.
Highlights
In order to alleviate the pressure caused by the energy crisis and protect human health, it is very important to increase the development and utilization of clean and renewable energy [1, 2]
According to the motion equation of the buoy in the wave, this paper studies the influence of the buoy shape, arm length, tilt angle, buoy draft, buoy width, wave height, and Power Take-off (PTO) damping on the hydrodynamic performance of the buoy
The “Haida No 1” oscillating buoy wave energy converter (OBWEC) is used as the research object, and its working principle is introduced
Summary
In order to alleviate the pressure caused by the energy crisis and protect human health, it is very important to increase the development and utilization of clean and renewable energy [1, 2].
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