Nokta emici dalga enerjisi dönüştürücü şamandıralarının Ansys AQWA kullanılarak geometri analizi ve optimizasyonu

Öz

Bu çalışmada, dalgaların dikey hareketinden enerji üreten dört farklı nokta emici şamandıra geometrisinin hidrodinamik performansı Ansys AQWA yazılımı kullanılarak analiz edilmiştir. Analizler Karadeniz’in ortalama dalga verileri doğrultusunda gerçekleştirilmiş, şamandıraların tepki genliği operatörü (RAO), ek kütle, radyasyon sönümlemesi ve uyarıcı kuvvet parametreleri değerlendirilmiştir. Elde edilen sonuçlara göre, P4 kodlu şamandıranın RAO eğrisi, Karadeniz’in baskın dalga frekans aralığı olan 0,5–0,7 rad/s’de maksimum değerlere ulaşmış ve enerji emiliminde yüksek performans sergilemiştir. Aynı frekans aralığında P4 tasarımının ek kütle değeri 40–45 kg aralığında sabitlenmiş, bu da enerji emilimini artıran bir etken olarak değerlendirilmiştir. Radyasyon sönümleme değerleri ise P4 için 20–25 N·s/m aralığında gerçekleşmiş; salmalı yapısı ve ağırlık merkezinin salmaya yakınlığı nedeniyle diğer tasarımlara göre daha stabil ve dirençli bir yapı sergilemiştir. Uyarıcı kuvvet analizlerinde ise yine aynı frekans aralığında P4 tasarımı 1900 N/m ile en yüksek değere ulaşmıştır. Bu sonuçlar, P4 şamandırasının Karadeniz koşullarında optimum enerji verimi sunan en uygun geometri olduğunu ortaya koymuştur.

Anahtar Kelimeler

• Dalga enerjisi
• şamandıra tasarım
• hidrodinamik analiz
• ansys aqwa
• dalga enerji sistemi

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

Öz

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.

Anahtar Kelimeler

• Wave energy
• buoy design
• hydrodynamic analysis
• ansys aqwa
• wave energy system

Kaynakça

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