Analysis and Optimization of Point Absorber Wave Energy System Buoys Using Ansys

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Kocaeli Journal of Science and Engineering
Cilt: 8 Sayı: 2
Analysis and Optimization of Point Absorber Wave Energy System Buoys Using Ansys

Analysis and Optimization of Point Absorber Wave Energy System Buoys Using Ansys

Pages : 147-153

View : 76 | Download : 230

Publication Date : 2025-11-30

Article Type : Research Paper

Abstract :In this study, the hydrodynamic performance of four different point absorber buoy geometries, designed to harness energy from the vertical motion of waves, was analyzed using Ansys AQWA software. The analyses were conducted based on the average wave data of the Black Sea, and key hydrodynamic parameters, including Response Amplitude Operator (RAO), added mass, radiation damping, and excitation force, were evaluated. The results indicate that the P4 buoy geometry exhibits peak RAO values within the dominant wave frequency range of the Black Sea (0.5–0.7 rad/s), demonstrating superior energy absorption performance. In the same frequency range, the added mass values for P4 remained within 40–45 kg, contributing to enhanced energy efficiency. The radiation damping coefficient for P4 was found to range between 20–25 N/s, and its stability was attributed to the presence of a submerged mass and a center of gravity positioned near the ballast. Moreover, the excitation force for the P4 buoy reached the highest value among all geometries, with approximately 1900 N/m in the 0.5–0.7 rad/s frequency range. These findings highlight the P4 buoy as the most efficient and hydrodynamically favorable design for wave energy conversion under Black Sea conditions.
Keywords : Dalga enerjisi, şamandıra tasarım, hidrodinamik analiz, ansys aqwa, dalga enerji sistemi

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