A velocity prediction program (VPP) has been developed at the UAS Kiel, which implements a new method to model the hydrodynamic forces acting on the hull and appendages of a sailing yacht. Based on linear wing theory the model allows the derivation of a set of hydrodynamic coefficients for the VPP from a limited set of towing tank test runs. This approach makes the new VPP, called AVPP, in particular suitable to serve as a towing tank post-processor. The paper describes AVPP, the hydrodynamic model and the math behind the derivation of hydrodynamic coefficients from tank test results. Two examples are shown: a study of the impact of the ACC V4/V5 rule changes and a comparison of a canting keel and a conventional keel yacht.
A New Velocity Prediction Method for Post-Processing of Towing Tank Test Results
Graf, Kai, and Christoph Bohm. "A New Velocity Prediction Method for Post-Processing of Towing Tank Test Results" Paper presented at the SNAME 17th Chesapeake Sailing Yacht Symposium, Annapolis, Maryland, USA, March 2005. doi: https://doi.org/10.5957/CSYS-2005-005
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