Numerical investigation of the seakeeping of a Flettner rotors-propelled catamaran in beam waves - Laboratoire de recherche en Hydrodynamique, Énergétique et Environnement Atmosphérique
Communication Dans Un Congrès Année : 2023

Numerical investigation of the seakeeping of a Flettner rotors-propelled catamaran in beam waves

Résumé

This paper deals with the seakeeping of a catamaran propelled by Flettner rotors. The case study is a specific design of an energy ship. The prediction of the roll motion of such a ship is of particular interest since she will mostly sail in beam seas. We used a numerical model based on the boundary element method (BEM) to deal with the interactions of the ship with waves. It is supplemented by a model for the aerodynamic damping effect due to the rotors and by the ITTC correction for roll damping. In the present study, it has been assumed that the Flettner rotors can be modelled as a distribution of elementary airfoils whose lift and drag depend on the local apparent wind speed. Interaction effects between the rotors and between the hull and rotors have been neglected. Regular waves have been investigated. For the considered case study, it is found that the Flettner rotors have a small negative damping effect on the ship motion.
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Dates et versions

hal-04609197 , version 1 (12-07-2024)

Identifiants

  • HAL Id : hal-04609197 , version 1

Citer

Fabio Pili, Aurélien Babarit, Félicien Bonnefoy, Grégory S Payne. Numerical investigation of the seakeeping of a Flettner rotors-propelled catamaran in beam waves. Innov'sail: 6th International Conference on Innovation in High Performance Sailing Yachts and Wind-Assisted Ships, May 2023, Lorient (56100), France. ⟨hal-04609197⟩
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