THE NINETEENTH CHESAPEAKE SAILING YACHT SYMPOSIUM March 20-21, 2009 Annapolis, Maryland, USA Society of Naval Architects and Marine Engineers Chesapeake Section American Institute of Aeronautics and Astronautics US Sailing Chesapeake Bay Yacht Racing Association Severn Sailing Association
THE 19*" CHESAPEAKE SAILING YACHT SYMPOSIUM ANNAPOLIS, MARYLAND, MARCH 2009 Table of Contents Papers Presented on Friday, March 20, 2009 CFD and VPP Challenges in the Design ofthe New AC90 Americas Cup Yacht 1 Kai Graf, Institute of Naval Architecture, University of Applied Sciences Kiel (UAS), Germany Christopii Boehm, R&D-Centre Univ. Applied Sciences Kiel, Yacht Research Unit, Germany Hannes Renzsch, R&D-Centre Univ. Applied Sciences Kiel, Yacht Research Unit, Germany A New Method for the Prediction ofthe Side Force on Keel and Rudder ofa Sailing Yacht Based on the Results ofthe Delft Systematic Yacht Hull Series 19 J. A. Keuning, Delft University oftechnology, Shiphydromechanics Department B. Verwerft, Delft University oftechnology, Shiphydromechanics Department CFD-Based Hydrodynamic Analysis of High Performance Racing Yachts 31 Len Imas, Associate Professor Davidson Laboratoiy, Stevens Institute oftechnology Bryan Baker, Naval Architect, Farr Yacht Design Britton Ward, Senior Naval Architect, Farr Yacht Design Gregory Buley, Senior Engineer, CDI Marine Company, Band Lavis Division On the Choice of CFD Codes in the Design Process of Planing Sailing Yachts 37 Jérémie Raymond, Groupe Finot-Conq / Ecole Centrale de Nantes, Nantes, France Jean-Marie Finot, Groupe Finot-Conq, Vannes, France Jean-Michel Kobus, Ecole Centrale de Nantes, Nantes, France Gérard Delhommeau, Ecole Centrale de Nantes, Nantes, France Patrick Queutey, Ecole Centraie de Nantes, Nantes, France Aurélien Drouet, Hydrocean / Ecole Centrale de Nantes, Nantes, France Systematic Series ofthe lacc yacht "II Moro di Venezia": Heel and Yaw Analysis 55 D. Peri, INSEAN - Italian Ship Model Basin, Roma, Italy F. Di Ci'o, INSEAN - Italian Ship Model Basin, Roma, Italy M. Roccaldo, INSEAN - Italian Ship Model Basin, Roma, Italy Yacht Design Software 2.0: The Open Source Movement 67 Mathew Bird, Farr Yacht Design, Annapolis, MD USA William F. Cook, Advance Technology Center, DRS C3, Stevensville, MD USA George S. Hazen, Advance Technology Center, DRS C3, Stevensville, MD USA Britton Ward, Farr Yacht Design, Annapolis, MD USA Upwind Sail Performance Prediction for a VPP Including "Flying Shape" Analysis 81 Brian Maskew, Flow Simulation Consultant, Winthrop, WA Frank DeBord, Chesapeake Marine Technology LLC, Easton, MD ii
THE 19"' CHESAPEAKE SAILING YACHT SYMPOSIUM ANNAPOLIS, MARYLAND, MARCH 2009 Table of Contents Papers Presented on Saturday, March 21, 2009 Photogrammetric Investigation of the Flying Shape of Spinnakers in a Twisted Flow Wind Tunnel 97 Kai Graf, Institute of Naval Architecture, University of Applied Sciences Kiel (UAS), Kiel / Germany Olaf Müller, LM Glasfiber A/S, Dept. R&D Aerodynamics Team, Kolding / Denmark Sails Aerodynamic Behavior in Dynamic Conditions 109 Fabio Fossati, Department of Mechanics- Politecnico di Milano, Milano, Italy Sara Muggiasca, Department of Mechanics- Politecnico di Milano, Milano, Italy Assessing the Wind-Heel Angle Relationship of Traditionally-Rigged Sailing Vessels 125 William C. Lasher, The Pennsylvania State University at Erie, The Behrend College Diana R. Tinlin, The Pennsylvania State University at Erie, The Behrend College Bruce Johnson, Co-chairs, SNAME Panel 0-49 John Womack, Co-chairs, SNAME Panel 0-49 Jan C. Miles, Captain, Pride of Baltimore II Walter Rybka, Captain, U.S. BrigNiagara Wes Heerssen, Captain, U.S. Br'igNiagara Development and Initial Review of the Mark II Navy 44 Sail Training Craft 143 Paul Miller, United States Naval Academy, Annapolis, MD David Pedrick, Pedrick Yacht Designs, Newport, RI Gram Schweikert, Pedrick Yacht Designs, Newport, RI Tacking in the Wind Tunnel 161 Frederik C. Gerhardt, Yacht Research Unit, The University of Auckland, Auckland, New Zealand David Le Pelley, Yacht Research Unit, The University of Auckland, Auckland, New Zealand Richard G. J. Flay, Yacht Research Unit, The University of Auckland, Auckland, New Zealand Peter Richards, Yacht Research Unit, The University of Auckland, Auckland, New Zealand Full Scale Measurements on a Hydrofoil International Moth 177 Bill Beaver, U.S. Naval Academy Hydromechanics Lab, Annapolis, MD John Zseleczky, U.S. Naval Academy Hydromechanics Lab, Annapolis, MD Alpha and Rocker - Two Design Approaches that led to the Successful Challenge for the 2007 International C-Class Catamaran Championship 197 Steve Killing, Steve Killing Yacht Design, Midland, Ontario, Canada Bibliography of Previous Chesapeake Sailing Yacht Symposia Papers 213 iii
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THE 19'" CHESAPEAKE SAILING YACHT SYMPOSIUM ANNAPOLIS, MARYLAND, MARCH 2009 Steering Committee Executive Committee Volker Stammnitz Chairman Marc Zupan Papers Committee Chairman John Zseleczky Past Chairman Andy Ulak Treasurer / Registration Jaye Falls Arrangements / CD Archive Brent Canaday Webmaster Tim Quarrick Webmaster Luke Shingledecker Publicity Alon Finklestein Publicity Bryan Baker Publicity Rebecca Macklem Registration Ian Mutnick Printing / Registration Advisors Bruce Johnson Richards T. Miller (Founder) Robert W. Peach (Founder) Papers Committee Denis Cartie David A. Helgerson Sam Markkula J. Otto Scherer Craig Steeves Thomas H. Walsh
THE 19'" CHESAPEAKE SAILING YACHT SYMPOSIUM ANNAPOLIS, MARYLAND, MARCH 2009 Sponsors The Society of Naval Architects and Marine Engineers 601 Pavonia Avenue Jersey City, NJ 07306 www.sname.org The American Institute of Aeronautics and Astronautics 1801 Alexander BeU Drive Suite 500, Reston, VA 20191 www.aiaa.org SAILING The United States Sailing Association P.O. Box 209 Newport, RI 02840-0209 www.ussailing.org The Chesapeake Bay Yacht Racing Association 612 Third Street Annapolis, MD 21403 \vww.cbvra.org Severn Sailing Association 311 First Street Annapolis, MD 21403 www.severnsailing.org The Nineteenth CSYS was held on March 20-21, 2009 The papers were presented in the Francis Scott Key Auditorium Located on the campus of St. John's College Annapolis, Maryland, USA. Copyright 2009 by the Society of Naval Architects and Marine Engineers vi