Computational Analysis of Pressure Distribution of Traditional Aceh Boat Hull Attributed to Speed Variations

Abstract

Computational fluid dynamics (CFD) is widely applied in the shipping industry to analyze fluid flow in predicting hull pressure due to water. This analysis facilitates a comprehensive understanding of pressure distribution along the hull when design changes are implemented to withstand hydrodynamic pressure during operation. In recent years, applications for composite hull materials have gained significant attention for investigation. For a wide range of applications, both civil and military, precise information regarding the loading force acting on the hull surface and the shape of the wet area is required. Therefore, this research aimed to assess the pressure distribution occurring in the hull and keel of the boat starting from the bow of the sharp area to the stern, assuming speed variations at 5.83, 11.66, 17.50, 23.33, 29.16, 34.99, 40.82, and 46.65 knots. For analysis, a traditional fishing boat shape from Aceh, Indonesia was selected. The results showed that the highest pressure occurred at the bow sharp end of the boat, reaching 259 kPa at a speed of 46.65 knots. Generally, the tendency of pressure distribution commenced at the bow of the sharp tip towards the stern due to changes in the given speed variation.