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Keywords: wind angle
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Proceedings Papers

Paper presented at the SNAME 23rd Chesapeake Sailing Yacht Symposium, March 15–16, 2019
Paper Number: SNAME-CSYS-2019-014
... trapeze hull wind angle Science of the 470 Sailing Performance Yutaka Masuyama, Kanazawa Institute of Technology, Kanazawa, Japan Munehiko Ogihara, SANYODENKI AMERICA, Torrance CA, USA ABSTRACT To sail a 470 faster, authors consider the sailing performance of the 470 from the various measured data...
Proceedings Papers

Paper presented at the SNAME 22nd Chesapeake Sailing Yacht Symposium, March 18–19, 2016
Paper Number: SNAME-CSYS-2016-005
... as the apparent wind angle increases. In the case of leech flicking, the experiments show that the formation of vortex pairs is fundamental to the augmented thrust due to heaving. The presence of S-turns, whereby the sailor changes the boats direction simultaneous with rolling the boat, generally...
Proceedings Papers

Paper presented at the SNAME 21st Chesapeake Sailing Yacht Symposium, March 15–16, 2013
Paper Number: SNAME-CSYS-2013-004
... of sailboat along y axis Apparent velocity of sailboat along x axis AWA Apparent Wind Angle Apparent velocity of sailboat along y axis AWS Apparent Wind Speed Apparent acceleration of sailboat along x axis TWA True Wind Angle Apparent acceleration of sailboat along y axis TWD True Wind Direction Leeway...
Proceedings Papers

Paper presented at the SNAME 21st Chesapeake Sailing Yacht Symposium, March 15–16, 2013
Paper Number: SNAME-CSYS-2013-012
... wind angle, downwind under asymmetric spinnaker at 60° and downwind under symmetric spinnaker at 120° apparent wind angle. The regions of positive and negative interference are determined through aerodynamic force measurement and flow disturbance measurement, and the sources of these effects...
Proceedings Papers

Paper presented at the SNAME 19th Chesapeake Sailing Yacht Symposium, March 20–21, 2009
Paper Number: SNAME-CSYS-2009-012
... wind angles where the sails are flogging. In this paper measured aerodynamic force and moment coefficients for apparent wind angles between 0° and 30° are presented. Tests were carried out in the University of Auckland’s Twisted Flow Wind Tunnel in a quasi-steady manner for stepwise changes...
Proceedings Papers

Paper presented at the SNAME 18th Chesapeake Sailing Yacht Symposium, March 2–3, 2007
Paper Number: SNAME-CSYS-2007-001
... probability weather scenario equation southampton wind angle automatic crew information simulator athlete sailor THE 18th CHESAPEAKE SAILING YACHT SYMPOSIUM ANNAPOLIS, MARYLAND, MARCH 2007 A Combined Ship Science-Behavioural Science Approach To Create a Winning Yacht-Sailor Combination Matteo...
Proceedings Papers

Paper presented at the SNAME 16th Chesapeake Sailing Yacht Symposium, March 3, 2003
Paper Number: SNAME-CSYS-2003-014
.... strut catamaran rudder calliope drag coefficient true wind angle hub shaft cere coefficient lift coefficient wind angle displacement hull main foil lifter aspect ratio sailing foil boat THE 16th CHESAPEAKE SAILING YACHT SYMPOSIUM ANNAPOLIS, MARYLAND, MARCH 2003 The Rise...
Proceedings Papers

Paper presented at the SNAME 16th Chesapeake Sailing Yacht Symposium, March 3, 2003
Paper Number: SNAME-CSYS-2003-007
.... wigley hull hull reservoir simulation information free surface fluid dynamics computational domain mesh calculation waterplane geometry symposium america application hydrodynamic equation wind shadow separation boat configuration wind angle THE 16th CHESAPEAKE SAILING YACHT...
Proceedings Papers

Paper presented at the SNAME 16th Chesapeake Sailing Yacht Symposium, March 3, 2003
Paper Number: SNAME-CSYS-2003-002
... materials and fiber orientation. A VPP (Velocity Prediction Program) is used to predict leeway, heel, and boat speed for a given true wind angle and wind speed. Then the CFD code computes the airflow around the sails for the given onset flow conditions and provides the pressure distribution on the sails...
Proceedings Papers

Paper presented at the SNAME 16th Chesapeake Sailing Yacht Symposium, March 3, 2003
Paper Number: SNAME-CSYS-2003-005
... this IMS aerodynamic model, thereby reducing the pre-existing biases. apparent wind angle spinnaker ranzenbach ims rule variation effective rig height annapolis coefficient rig overlap boat fractionality aerodynamic model fractional rig jib overlap mainsail ims aerodynamic model wind...
Proceedings Papers

Paper presented at the SNAME 14th Chesapeake Sailing Yacht Symposium, January 29–30, 1999
Paper Number: SNAME-CSYS-1999-007
... of wind tunnel testing. glm wind tunnel construction technique offwind sail wind tunnel testing maryland whitbread round univ aerodynamic performance inventory tunnel testing wind angle selection development program college park quantum wSAILING HE 14th CHESAPEAKE SAILING YACHT...
Proceedings Papers

Paper presented at the SNAME 13th Chesapeake Sailing Yacht Symposium, January 24–25, 1997
Paper Number: SNAME-CSYS-1997-001
... quantity ship speed wind angle sail plan apparent wind angle sail coefficient heel angle correlation coefficient wind speed - ·i)- THE THIRTEENTH CHESAPEAKE SAILING YACHT SYMPOSIUM On Test Measurements in Full Scale Sailing Test Programs Howard P. Grant, Mystic Seaport Museum, Mystic...
Proceedings Papers

Paper presented at the SNAME 9th Chesapeake Sailing Yacht Symposium, March 11, 1989
Paper Number: SNAME-CSYS-1989-002
... estimates, are quickly produced and tested, by the VPP, for performance. crew distance sailing yacht performance wind velocity vpp boat characteristic wind angle approximation drag coefficient THE NINTH CHESAPEAKE SAILING YACHT SYMPOSIUM GUIDES TO THE APPROXIMATION OF SAILING YACHT...
Proceedings Papers

Paper presented at the SNAME 8th Chesapeake Sailing Yacht Symposium, March 7, 1987
Paper Number: SNAME-CSYS-1987-001
... understand­ing of the VPP to many sailors so that they can take advantage of the technology in their normal activities. apparent wind prediction application sailing weather yacht vpp measurement system wind angle boat wind velocity information boat speed certificate sailor knot helmsman...
Proceedings Papers

Paper presented at the SNAME 5th Chesapeake Sailing Yacht Symposium, January 17, 1981
Paper Number: SNAME-CSYS-1981-002
...-based marine instruments have increased in capability and popularity. This paper describes some current developments in electronics to evaluate the performance of sailing yachts, ranging from basic digital displays to full-blown shoreside computers. boat speed sailor apparent wind angle...
Proceedings Papers

Paper presented at the SNAME 2nd Chesapeake Sailing Yacht Symposium, January 18, 1975
Paper Number: SNAME-CSYS-1975-001
.... The result is a set of five equations in five unknowns. Given the true wind velocity and course sailed, the equations are solved for boat speed, apparent wind speed, apparent wind angle, leeway angle, and heeling angle. The theory is compared with full scale towing tests and sailing measurements...

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