Abstract Interference effect between catamaran demi-hulls has been considered as an adverse fluid-solid interaction; the narrower separation distance two hulls, greater drag force acts upon catamaran. However, this study is aimed at introducing a novel phenomenon contrasting outcome in semi-planing and planing regimes. As speed accordingly Froude number increase transits across different modes,...

The present study deals with the local optimization of stern area and propulsive efficiency a battery-driven, fast catamaran vessel. adopted approach considers parametric model for catamaran’s innovative transom QCM (Quasi-Continuous Method) body-force effect fitted propellers. Hydrodynamic calculations were performed by CFD code FreSCO+, which also enabled deep analysis incurring unique phenom...

Powerboats in operation represent a system consisting of a number of complex components such as: surface propellers, aerodynamics and hydrodynamics; which interact with each other and with the wind and water surface conditions. By measuring the behaviour of the powerboat it is possible to create a mathematical model using system identification methods. A neural network model has been generated ...