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Mina Tadros, Roberto Vettor, Manuel Ventura and C. Guedes Soares
This paper presents the effect of a propeller cup on the propeller cavitation and the fuel consumption of a bulk carrier in both calm water and different weather conditions towards improving the energy efficiency of the ship and reducing the level of emi...
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Mina Tadros, Roberto Vettor, Manuel Ventura and C. Guedes Soares
This paper presents the effect of hull roughness over 10 years of operation on ship performance. The numerical model is developed by coupling NavCad and Matlab to perform the computation and the data processing. On the basis of a given hull, an engine, a...
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Teresa L. Rosa, A. Miguel Piecho-Santos, Roberto Vettor and C. Guedes Soares
This paper focuses on the state of the art on Autonomous Observing Systems (AOS) used in Vessels of Opportunity (VOO) for collecting in situ atmospheric, oceanic and biogeochemical data. The designation Vessels of Opportunity includes all kinds of ships,...
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Lúcia Moreira, Roberto Vettor and Carlos Guedes Soares
In this paper, simulations of a ship travelling on a given oceanic route were performed by a weather routing system to provide a large realistic navigation data set, which could represent a collection of data obtained on board a ship in operation. This d...
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Roberto Vettor, Giovanni Bergamini and C. Guedes Soares
This work aims at defining in a probabilistic manner objectives and constraints typically considered in route optimization systems. Information about weather-related uncertainties is introduced by adopting ensemble forecast results. Classical reliability...
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Mina Tadros, Roberto Vettor, Manuel Ventura and Carlos Guedes Soares
This study presents a practical optimization procedure that couples the NavCad power prediction tool and a nonlinear optimizer integrated into the Matlab environment. This developed model aims at selecting a propeller at the engine operating point with m...
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