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Variation of Pitch Ratio Propeller Bos Cap Fins (PBCF) on Fishing Ship's B-Series Propeller
Nikmatullah M.I.
Aip Conference Proceedings
Abstract
In general, ships are designed with different functions and purposes, such as fishing boats that have a special mission (finding, catching and conserving fish) so that the ship has special design parameters as well. Apart from having good speed and maneuvering, fishing boats must also move quietly with low vibrations. In order to achieve this goal, the most important aspect in designing fishing boats is planning the propulsion system, optimizing the efficiency of the ship s propulsion system by minimizing losses caused by vortices, which focus on modifying the fin boss propeller geometry. The purpose of this study was to determine the effect of the boss propeller fins geometry on propeller efficiency, by using the CFO (Computational Fluid Oynamic) approach with variations in the diameter and tilt model of the fins. It was found that the larger diameter of the fins had a greater thrust value where the diameter 35 cm of fins have a better thrust value than 25 cm fins, while the slope 39° of fins has a more optimal thrust value.