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Numerical study of a flexible sail plan: effect of pitching decomposition and adjustments ArchiMer
Augier, Benoit; Hauville, Frédérick; Bot, Patrick; Deparday, Julien; Durand, Mathieu.
A numerical investigation of the dynamic Fluid Structure Interaction (FSI) of a yacht sail plan submitted to harmonic pitching is presented to analyse the effects of motion simplifications and rigging adjustments on aerodynamic  forces. It is shown that the dynamic behaviour of a sail plan subject to yacht motion clearly deviates from the quasi-steadytheory. Theaerodynamicforcespresentedasafunctionoftheinstantaneousapparentwindangleshow hysteresis loops. These hysteresis phenomena do not result from a simple phase shift between forces and motion. Plotting the hysteresis loops in the appropriate coordinate system enables the associated energy to be determined. This amount of exchanged energy is shown to increase almost linearly with the pitching reduced...
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Ano: 2013 URL: https://archimer.ifremer.fr/doc/00601/71282/69689.pdf
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