For the refit of a large yacht FluidEngineeringSolutions was tasked with the prediction of the impact of a larger bow thruster on performance, optimisation of the bow truster grid and tri optimisation for long distance cruising efficiency. By casreful optimisation of the thruster installation and grid shape and orientation it was possible to eleminate any negative effects on perforformance as well as the risk of vibration of the grid bars. By optimisation of the longitudinal centre of gravity (e.g. by shifting of fuel) the required power at cruising speed could be reduced by about 7% vs. even keel floatation.
FluidEngineeringSolutions has been contracted by the Yacht Research Unit Kiel to couple the YRU-Kiel’s in-house membrane FEA code – FlexSail – to the RANS code OpenFOAM. Watch this space for further information.
Together with the designers – Berckemeyer Yacht Design – we optimised the hullform of a 70ft fast motor-sailing yacht for optimum cruising efficiency. Further we investigated the probability of seasickness (Motion Sickness Indicator MSI) and effect of weight distribution thereon.