THE SEVENTEENTH CHESAPEAKE SAILING YACHT SYMPOSIUM

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1 THE SEVENTEENTH CHESAPEAKE SAILING YACHT SYMPOSIUM March 4-5, 2005 Annapolis, Maryland, USA Society of Naval Architects and IVIarine Engineers Chesapeake Section US Sailing U.S. Naval Academy Sailing Squadron

2 THE 17'*' CHESAPEAKE SAILING YACHT SYMPOSIUM Table of Contents Papers Presented on Friday, Marcli 4, 2005 Toward Numerical VPP with the Full Coupling of Aerodynamic and Hydrodynamic Solvers for ACC Yachts 1 Erwan Jacquin, Bassin d'essais des carens. Val de Reuil, France Yann Roux, Company K-Epsilon, Val de Reuil, France Bertrand AUessandrini, Ecole Centrale, Nantes, France Time Domain Simulation ofa Yacht Sailing Upwind in Waves 13 D. H. Harris, Reichel-Pugh Yacht Design, San Diego, USA Geometry and Resistance of the lacc Systematic Series "II Moro di Venezia" 33 D. Battistin, E\[SEAN - Italian Ship Model Basin, Rome, Italy D. Peri, INSEAN - Italian Ship Model Basin, Rome, Italy E. F. Campana, INSEAN - Italian Ship Model Basin, Rome, Italy Sailing Yacht Rig Improvements Through Viscous Computational Fluid Dynamics 53 Vincent G. Chapin, Fluid Mechanics Department, Ensica, France Romaric Neyhousser, Aquitaine Design Team, Arcachon, France Stephane Jamme, Fluid Mechanics DepartmenL Ensica, France Guillaume Dulliand, Fluid Mechanics Department, Ensica, France Patrick Chassaing, Fluid Mechanics Department, Ensica, France A New Velocity Prediction Method for Post-Processing of Towing Tank Test Results Kai Graf, Institute of Naval Architecture, University of Applied Sciences Kiel (UAS), Germany Christoph Bohm, R&D-Centre Univ. Applied Sciences Kiel, Yacht Research Group, Germany Hull Form Optimization of Performance Characteristics of Turkish Gulets for Charter. 79 Mark Gammon, DRDC Atlantic, Dartmouth Nova Scotia, Canada Abdi Kukner, Istanbul Technical University, Istanbul, Turkey AJimet Alkan, Yildiz Technical University, Istanbul, Turkey The Development of an Integrated Ship Design Environment for the Naval Architect on The Linux Operating System 91 H. James Parker, Gibbs and Cox, Incorporated, USA Multiobjective Design Optimization of an lacc Sailing Yacht by Means of CFD High- Fidelity Solvers 105 Daniele Peri, INSEAN, Rome, Italy Fabrizio Mandolesi, INSEAN, Rome, Italy ii

3 THE 17"' CHESAPEAKE SAILING YACHT SYMPOSIUM Table of Contents Papers Presented on Saturday, March 5, 2005 Comparison of Tacking and Wearing Performance Between a Japanese Traditional Square Rig and a Chinese Lug Rig 117 Yutaka Masuyama, Kanazawa Institute of Technology, Japan Akira Sakurai, Kyushu University, Japan Toichi Fukasavva, Kanazawa Institute of Technology, Japan Kazunori Aoki, Kawasaki Shipbuilding Corporation, Japan Relative Performance of Conventional Versus Movable-Ballast Racing Yachts 129 Frank DeBord, BMT Scientific Marine Services, USA Harry Dunning, Reichel/Pugh Yacht Design, USA The Effect of Mast Height and Centre of Gravity on the Re-Righting of Sailing Yachts. 135 Jonathan R. Binns, Researcher, Australian Maritime College, Australia Paul Brandner, Research Leader, Cavitation and Fluid Dynamics, Australian Maritime College A Generic Mathematical Model for the Maneuvering and Tacking ofa Sailing Yacht J. A. Keuning, Shiphydromechanics Laboratory, Delft University of Technology K. J. Vermeulen, Shiphydromechanics Laboratory, Delft University of Technology E. J. de Ridder, MARIN, Wageningen Experimental Methods to Evaluate Undenvater Appendages 165 Robert Ranzenbach, GLM Wind Tunnel-University of Maryland, College Park Maryland, USA Mathew Zahn, Webb Institute of Naval Architecture, Glen Cove New York, USA A Velocity Prediction Program for a Planing Dinghy 183 Todd Carrico, Naval Surface Warfare Center Carderock Division, Bethesda Maryland, USA Sail Aero-Structures: Studying Primaiy Load Paths and Distortion 193 Robert Ranzenbach, GLM Wind Tunnel & Quantum Sail Design Group, Annapolis MD USA Zhenlong Xu,, GLM Wind Tunnel - University of Maiyland, College Park Maryland, USA Light Weight Sandwich Panels for Yacht Hull Structures 205 M. C. Rice, UMBC - University of Maryland Bahimore County, Baltimore Maryland, USA C. A. Fleischer, UMBC - University of Maryland Baltimore County, Baltimore Maryland, USA D. D. R. Cartie, Cranfield University, Cranfield, United Kingdom Marc Zupan, UMBC - University of Maryland Baltimore County, Baltimore Maryland, USA Bibliography of Previous Chesapeake Sailing Yacht Symposia Papers 217 iii

4 In Memoriam The 17th Chesapeake Saihng Yacht Symposium is dedicated to Edy Walsh Frederick Wallace wrote: "Ye can have yer steamboat racin', but gimme the run in a gale, Of a well geared, able clipper, what is driven by snow white sail. For I've known the thrill of a pilin' sea an' the sky in cloud flecked gown An' fourteen laiots in a windbag when she's running her Easting down." sail Edy Walsh is that well geared, able clipper, driven by snow white These gifts were showcased every two years at the Chesapeake Sailing Yacht Symposium, for which she was the Arrangements Chair. This Symposium is the premier technical forum in the world for sailing yacht technology and regularly draws international papers and attendees. Authors from England, France, Spain, Italy, Germany, Holland, Switzerland, Argentina, Japan, Australia and New Zealand are commonplace. All attendees perennially appreciated the venue, snacks, meals and receptions, which Edy orchestrated. Everyone, including some of the most well known names in the sailing world, knew her and were delighted to see her again. She needed a sailbag sized for a spinnaker on a 70 foot long International America's Cup Class yacht to carry home all the compliments she received each time Excerpt from the eulogy for Edy Walsh December 10, 2003 by Steve Judson iv

5 THE 17"' CHESAPEAKE SAILING YACHT SYMPOSIUM 17^" CSYS Steering Committee Executive Committee John Zseleczky Stephen R.Judson Andy Ulalc J. Bergquist Jaye Falls Brent Canaday Veronique Bugnion Luke Shingledecker Alon FinJclestein Marc Zupan General Chairman Papers Committee Chairman Treasurer/Registration Past Proceedings CD Archive Webmaster Arrangements Publicity Publicity Proceedings Advisors Bruce Johnson Richards T. Miller (Founder) Robert W. Peach (Founder) Papers Committee Jesse Falsone David A. Helgerson J. Otto Scherer John J. Slager Thomas H. Walsh Special Thanlis to Nancy A. Harris Rick Harris Edy Walsh v

6 THE 17"' CHESAPEAKE SAILING YACHT SYMPOSIUM The Seventeenth Chesapeake Sailing Yacht Symposium was co-sponsored by: The Society of Naval Architects and Marine Engineers 601 Pavonia Avenue, Jersey City, NJ SAtLiNS, The United States Sailing Association P.O. Box 209, Newport, RI The U.S. Naval Academy Sailing Squadron The Robert Crown Sailing Center, U.S.N.A., Annapolis, MD The Chesapeake Bay Yacht Racing Association 612 Third Street, Annapolis, MD The Seventeenth CSYS was held on March 4-5, 2005 The papers were presented in the Francis Scott Key Auditorium Located on the campus of St. John's College Annapolis, Maryland, USA. Copyright 2005 by The Society of Naval Architects and Marine Engineers vi