Resistance Analysis of a Hydrofoil Fast Patrol Boat Using Computational Fluid Dynamics

Gerard Richard Latuhihin, Johanna Matakupan, Fella Gaspersz, Richard Benny Luhulima

Abstract


As an archipelago, Indonesia needs a comprehensive national fleet of ships to retain sovereignty to defend and protect Indonesian waterways. Indonesia's open seas are bordered by international waterways, making them vulnerable to foreign threats. Thus, warships that serve as coastal patrol boats of varied sizes are required depending on the task and assignment. The main feature of patrol boats is speed, which is achieved through reducing the ship's resistance. Hydrofoils are now being used on ships owing to their benefits, such as minimizing the resistance created by the lift (lift) that elevates the hull above the water, thereby reducing the area of resistance caused by the drag force between the submerged hulls of the ship. The goal of this research was to see how adding hydrofoil to the ship's hull affected the ship's resistance. The impact of employing hydrofoils on rapid patrol boats was studied using Computational Fluid Dynamics. This research compared resistance on fast patrol boats with and without hydrofoils to optimize ship resistance. The use of Foil 4712 on a Hydrofoil can produce the optimum lift in foilborne conditions at Froude number 1.0 where Fast Patrol Boat without foil produces a drag of 953kN and Fast Patrol Boat with Foil produces a drag of 856 kN. Then, the Foil is able to reduce resistance by about 13% at Fr = 1.2 it gives the advantage that the installation of Foil is quite good at high speeds.

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DOI: http://dx.doi.org/10.52155/ijpsat.v30.2.3988

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