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http://dx.doi.org/10.3744/SNAK.2005.42.1.024

Calculations on the Interactions between Main and Jib Sails  

Yoo, Jae-Hoon (Korea Ocean Research & Development Institute)
Park, Il-Ryong (Korea Ocean Research & Development Institute)
Kim, Jin (Korea Ocean Research & Development Institute)
Ahn, Hae-Seong (Korea Ocean Research & Development Institute)
Van, Suak-Ho (Korea Ocean Research & Development Institute)
Lee, Pyeong-Guk (Chungnam University)
Publication Information
Journal of the Society of Naval Architects of Korea / v.42, no.1, 2005 , pp. 24-33 More about this Journal
Abstract
It is important to understand the flow characteristics around two sails of a sloop yacht. In this paper a computational aerodynamic investigation is performed over sail-like airfoils similar to the main and iIb sails of a 30 feet sailing yacht. Lift and drag are calculated for various conditions of slit distance between the two sails and overlapped length of the jib sail. The thrust and CE(center of effort) of the sail system are obtained. It is found that the combination of two sails produces the thrust force larger than the sum of the thrust force of each sail standing separately and the slit distance of the two sails are important factor to increase lift force.
Keywords
Sailing Yacht; interaction; Jib Sail; Main Sail; Slit Distance; Overlap; CE;
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