Akademik Veri Yönetim Sistemi
Global Maritime Congress GMC'24, İstanbul, Türkiye, 20 - 21 Mayıs 2024, cilt.1, sa.1, ss.286-291
Cavitation, a phenomenon characterized by the formation and collapse of vapor bubbles in a liquid, poses significant challenges to the efficiency and longevity of marine propulsion systems. In this study, the effects of propeller design parameters (especially Pitch, Blade Area Ratio (BAR), Skew, and Rake) on cavitation were investigated through Computational Fluid Dynamics (CFD) analysis. To ensure the accuracy of the CFD calculations, the open water and cavitation tunnel test results of the VP 1304 test propeller were taken as reference. After the validation studies, an initial propeller geometry was developed based on the VP 1304 propeller geometry used in the SVA PPTC 2011 Symposium. Subsequently, four different propeller designs were created by changing the Blade Area Ratio (BAR), Pitch (P), Skew, and Rake parameters of this initial propeller. The effect of each parameter on cavitation was evaluated separately and based on the data obtained, a new propeller geometry was developed with better cavitation performance compared to the first propeller. It was found that while improving the cavitation performance of the propeller, the open-water propeller efficiency decreases. The goal of the research is to provide a comprehensive understanding of how these design parameters influence cavitation inception, growth, and mitigation strategies.