Simple sail trim changes can be performed directly within the software, and the close coupling with CAD software makes it easy to change components such as sails and rigging. Flow separation reduces the driving force in the sail and increases drag. WB-Sails used EFD.Lab to pinpoint problem areas in sails where flow separation is likely to occur. In EFD.Lab we found exactly what we were looking for - an extraordinary ease of use provided by features such as ‘direct CAD-to-CFD’ technology and automatic mesh generation.” Head of R&D at WB-Sails Mikko Brummer explains he needed “to predict 3D air flow and sail forces on downwind legs and in the lighter winds that we expect in Beijing…. This 3D air-flow analysis using EFD.Lab reveals massive flow separation behind the Star jib sail at angles near stall.įlomerics (Marlborough, MA) reports that Finland-based sail maker WB-Sails is using EFD.Lab fluid dynamics simulation software to develop and optimize sails for Star and Finn class Olympic sailboats at the Beijing Olympics in August 2008.
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