• International Journal of Naval Architecture and Ocean Engineering
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• v.11 no.2
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• pp.648-661
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• 2019

Thin fabric-based yacht sails have a cambered shape to generate lift force; however, their shape can be easily deformed by wind pressure and also affected by the deformation of the mast. These deformations can change the airflow characteristics over the sail. Therefore, Fluid-Structure Interaction (FSI) analysis is needed to evaluate the sail force precisely. In this study, airflow over the deformed sail and rig was studied using FSI. Elastic deformation of the sail and rig was obtained by an aerodynamic calculation under dynamic pressure loading on the sail surface. The effects of rig deformation on the aerodynamic performance of the sail were examined according to the rig type and mast flexibilities. As a result, the changes of lift force for a fractional type rig with a thin mast section were more significant than with a masthead rig.

• Journal of the Society of Naval Architects of Korea
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• v.43 no.4 s.148
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• pp.504-511
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• 2006

In this paper a modern sailing boat for our costal area was developed by using the traditional boat hull form. Main particulars of design ship were determined by using the statistical values. Hull form was varied from the traditional boat hull form which was selected by the previous study and modified to fit Lateen sail. The appendage, rudder and keel were designed for good performance of against wind sailing. The performance of hull form was examined and the results were shown.