Communication Dans Un Congrès Année : 2008

Optical measurement of ship waves by digital image correlation

Résumé

A large part of the drag experienced by fast sailing boats originates from the energy radiated at the sea surface by waves. Optimising hull shape in order to minimise wave resistance requires thus a good knowledge of the wave structure created by the ship as well as its evolution with boat heel and boat speed. This knowledge usually originates from numerical simulations or towing experiments. We present here an optical method allowing the determination of the instantaneous 3D water surface shape with a good vertical resolution on large horizontal scales. This method may be useful in towing tank tests and should allow detailed comparisons with computed surface deformation and thus help to validate Velocity Prediction Programs.

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Dates et versions

hal-04403854 , version 1 (24-01-2024)

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  • HAL Id : hal-04403854 , version 1

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Marc Rabaud, Frederic Moisy. Optical measurement of ship waves by digital image correlation. INNOV'SAIL'08 International Conference Innovation on High Performance Sailing yachts 2008, Aug 2008, Lorient, France. pp.23-25. ⟨hal-04403854⟩
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