Uso do software Ansys Fluent para avaliar a hidrodinâmica de uma embarcação regional de alta velocidade

Abstract

High-speed vessels are highly relevant to the daily activities of the Amazon region due to the extensive waterways and the need to meet societal needs, including transportation, education, and healthcare. For this reason, evaluating the hydrodynamics of these vessels, including parameters such as drag and required power, is important for discussing operational aspects. However, applications of computational simulation methods are still necessary for studying the behavior of regional vessels. This work proposes a study of the hydrodynamics of a high-speed regional vessel using computational fluid dynamics with the Ansys Fluent software. As a representative case study, a cabin-type vessel, commonly used for school transportation or highspeed emergency healthcare services, was considered. Simulations were performed using the Ansys Fluent software, considering a multiphase analysis (air-water) and constant draft. The main objective of this work was to demonstrate the possibilities of using the software to evaluate the hydrodynamics of the vessel. The results obtained allowed for the evaluation of drag and lift forces, wave elevation, flow velocities, induced pressure field on the hull, and effective power. For the case study considered, a total advance resistance of 12.9 kN was found, with maximum wave elevations generated at a distance of up to approximately 0.45 m. The maximum pressures identified were between 33 and 50 kPa in the bow region, while the effective power required was 242.46 hp. The proposed approach can contribute to the study of regional vessels that have not been hydrodynamically characterized, but its validation with experimental data is required.