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Multiple windage areas

Posted on October 3, 2018

For the computation of wind heeling moments, in PIAS the windage area can be given. That used to be limited to a single contour, with some maximum number of points, which was sufficient for the common use the past 25 years. However, when importing the contour shape from a CAD system that maximum can easily be exceeded. For this reason this PIAS’ module Hulldef has been extended to accommodate a wind contour with a number of sub-contours (each with a resistance coefficient), with an unlimited number of points.