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首页> 外文期刊>International Journal of Marine Engineering Innovation and Research >Analysis of the Effects from Adding Propeller Boss Cap Fins to Skewed Propeller Performance With CFD Methods
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Analysis of the Effects from Adding Propeller Boss Cap Fins to Skewed Propeller Performance With CFD Methods

机译：用CFD方法将螺旋桨凸台鳍片添加到偏孔螺旋桨性能的影响分析

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摘要

fuel accounts for the majority of the ship's operating costs. Increased propeller efficiency can help to reduce fuel usage. The higher the efficiency, the less energy is wasted. Ships with high propeller efficiency may be able to provide more thrust while using less fuel. Propeller Boss Cap Fin (PBCF) installation is one of the solutions for improving propeller efficiency that is ideal for a submarine. PBCF may lower the submarine's energy usage, allowing it to recharge its batteries less frequently. According to certain studies, PBCF can boost propeller efficiency by 7% while lowering noise levels by nearly 6 decibels (dB). The impact of PBCF phase lag variation on skewed propeller performance and flow will be the subject of this article. CFD simulation using phase lags of 0, 12.86, 25.72, and 38.58 will be used in the study. The simulation shows that PBCF can improve propeller efficiency while lowering propeller torque. Even though all phase lag modifications show a reduction in propeller thrust. On its hub vortex, they also reveal the existence of distraction.
机译：燃料占船舶的大部分运营成本。增加的螺旋桨效率可以有助于降低燃料使用。效率越高，浪费了较少的能量。具有高螺旋桨效率的船舶可能能够在使用较少的燃料时提供更多推力。螺旋桨BOSS CAP FIN（PBCF）安装是提高潜水艇的螺旋桨效率的解决方案之一。 PBCF可能降低潜艇的能源使用量，使其能够频繁地为其电池充电。根据某些研究，PBCF可以将螺旋桨效率提高7％，同时降低近6分贝（DB）的噪声水平。 PBCF阶段滞后变化对偏斜螺旋桨性能和流动的影响将是本文的主题。使用相位滞后的CFD仿真为0,12.86,25.72和38.58将用于该研究。该模拟表明，PBCF可以在降低螺旋桨扭矩的同时提高螺旋桨效率。尽管所有相滞后修改都显示出螺旋桨推力的减少。在其枢纽漩涡上，他们还揭示了分心的存在。

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