Hydrodynamics of Advanced-hull Surface Vehicles

Prasad, Bijoy; Dhanak, Manhar R.

doi:10.1109/oceans.2018.8604717

Cited by 4 publications

(1 citation statement)

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“…Recently, Wu et al [23] proposed a method for optimizing the external shape and the internal unit cells of a hull simultaneously. However, in the marine context, the external shape of a hull is responsible for its drag, and therefore, the hydrodynamic performance of the hull's design needs to be considered [24,25]; such performance can be evaluated using CFD methods but also needs to be validated through experimental hydrodynamic tests [26]. Moreover, although research efforts regarding propulsion and power systems are mainly focused on the development of a vehicle power plant and its optimal control, a vessel's energy consumption is intimately related to the hull design.…”

Section: Introductionmentioning

confidence: 99%

Design Process and Advanced Manufacturing of an Aquatic Surface Vehicle Hull for the Integration of a Hydrogen Power Plant Propulsion System

Renau Martínez,

García Peñas,

Ibáñez Arnal

et al. 2024

JMSE

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This article presents the design and manufacturing of a hydrogen-powered unmanned aquatic surface vehicle (USV) hull. The design process comprised three stages: (1) defining the requirements for a preliminary geometry, (2) verifying the hydrodynamic hull performance using computational fluid dynamics (CFD) simulations, and (3) experimentally validating the hydrodynamic hull performance and CFD analysis results through experimental fluid dynamics in a calm water towing tank. The manufacturing process utilized additive manufacturing technologies, such as fused granular fabrication and selective laser sintering, to produce the hull and other components, including the propeller and the rudder; thermoplastic materials with carbon fiber reinforcement were employed. The experimental results demonstrate that the optimized trimaran hull exhibited low hydrodynamic resistance (7.5 N), high stability, and a smooth flow around the hull (up to 2 m/s). The design and manufacturing of the USV hull met expectations from both hydrodynamic and structural perspectives, and future work was outlined to integrate a power plant, navigation system, and scientific equipment.

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