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Publications
Carreira, T.L.T.M., Sutherland, L.S. and Pereira, J.M.C. (2023), FSI analyses of a high-performance solar boat composite T-hydrofoil, 25th Numerical Towing Tank Symposium (NuTTS 2023), 15-17 October, Ericeira, Portugal
Hydrofoils were inadvertently discovered in 1861 leading to early experimentation around the turn of that century and later widespread use in both military and passenger vessels. In recent years the use of very low specific stiffness and strength CFRP materials has enabled an explosion in hydro-foiling sail and power leisure craft, as well as a renewed interest in transport vessels. However, the complex nature of these materials (e.g. anisotropy, multiple and complex failure modes, dependence on production process and quality, variable mechanical properties, susceptibility to flaws etc.) together with a lack of in-service design data, mean that tools and expertise to predict the behaviour of these foils are still under developed and/or proprietary. Here, the aim is to develop a fluid-structure interaction (FSI) analyses of the composite T-hydrofoil of the (Instituto Superior) Tecnico Solar Boat (TSB) S R03 prototype (Figure 1) designed for the annual Monaco Energy Boat Challenge (MEBC).
The SR03 has a 1.5kWh battery, 6m2 of solar panels and a 10kW electric motor. Take off and cruise speeds are 10 and 15 knots, respectively, the later for up to 3 hours. The angles of attack of the three very stiff monolithic carbon-fibre-epoxy pre-preg T hydrofoils are independently adjusted by an integrated electronic controller via data from an ultrasound bow sensor bow.
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