Relazione per la rendicontazione del Programma CNR - Agenzia 2000

The final aim of this project is the development and the definition of algorithms for the naval hydrodynamics, useful in the stage of verification of the project. Marine vehicles are complex machines and usually, the project manager is more focused on the overall behaviour of the ship than in development of each single part: hull, propulsion system , electronic equipment on board, etc. These single aspects are attacked by means of simple and traditional methods of design. The latter are essentially based on the experience built for different kinds of ships. Only recently and only in the big shipyards, numerical codes based on sophisticated mathematical and numerical modelling are adopted. This is particularly true for the hydrodynamics aspects of the design, for which the complexity of the treated phenomena forced to a large use of practical knowledge and to a continuous use of experiments on model scale. At the moment numerical methods, usually developed by research institutes and/or universities are still quite simple. Indeed, the hydrodynamic phenomena are attacked from a fundamental prospective. In such a scenario the most advanced skills are rarely used for the practical design. The lack of advanced instruments for project and verification of the hydrodynamic behaviour of marine vehicles has consequences such as: a poor development of innovative solutions, an expensive use of experimental means and finally the impossibility of optimizing the design. This has motivated the present research project, aimed to the development of calculation algorithms for hydrodynamic advanced projects. The developed algorithms satisfy a balanced compromise between the completeness of information to project manager, the simplicity of use and a limited computational cost.