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Keywords: side force
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Proceedings Papers

Paper presented at the SNAME 24th Chesapeake Sailing Yacht Symposium, June 10–11, 2022
Paper Number: SNAME-CSYS-2022-006
.... The maximum side force (Cy, read on the right hand axis) is achieved when the wings are set to = 15 , 1 = 2 and 2 = 7 . In a configuration where AW A = 45 , the side force generated from the ship is still higher than the forward thrust. Following this, from the right-hand figure of 6 it is clear...
Proceedings Papers

Paper presented at the SNAME 24th Chesapeake Sailing Yacht Symposium, June 10–11, 2022
Paper Number: SNAME-CSYS-2022-010
... AWA Apparent Wind Angle AWS Apparent Wind Speed BCS Boat Coordinate System DOF Degree of Freedom DSS Dynamic Stability System FDRIVE Driving force FHEEL Heeling force FSIDE Side force FVERT Vertical force GCS Global Coordinate System LPP Lines Processing Program MMUNK Munk moment MPITCH Pitch moment...
Proceedings Papers

Paper presented at the SNAME 23rd Chesapeake Sailing Yacht Symposium, March 15–16, 2019
Paper Number: SNAME-CSYS-2019-001
... ABSTRACT Towing tank tests were carried out on three slender models in the Towing Tank at Newcastle University at fixed sink and trim in order to obtain more information on the hydrodynamics of such shapes, and in particular, how the shapes could generate side force when operating at a leeway angle...
Proceedings Papers

Paper presented at the SNAME 21st Chesapeake Sailing Yacht Symposium, March 15–16, 2013
Paper Number: SNAME-CSYS-2013-007
... more precisely measured by incorporating the sheeting position and confirming the In the S/VBP Tool, first enter, from condition parameters CLRg, and the side force established, multiplying one and from Figures 8 and 9, the following: TWS and AWS times the other yields the Falling Off moment/torque...
Proceedings Papers

Paper presented at the SNAME 21st Chesapeake Sailing Yacht Symposium, March 15–16, 2013
Paper Number: SNAME-CSYS-2013-009
... with a reputation for sea-worthiness that kept station S Sail area offshore to transfer pilots to incoming ships (Figure 1), SF Side force made famous in the sail-training world by the voyages of SPS Code of Safety for Special Purpose Ships Irving Johnson aboard his schooners Yankee. Teff Effective draft V Speed v...
Proceedings Papers

Paper presented at the SNAME 20th Chesapeake Sailing Yacht Symposium, March 18–19, 2011
Paper Number: SNAME-CSYS-2011-009
... is almost entirely attributable to differences in the induced drag. upper draft stripe sheet tension draft stripe sail plan elliptical distribution centerline sail trim traveler true wind angle wind speed drive force lift distribution photograph side force configuration traveler...
Proceedings Papers

Paper presented at the SNAME 20th Chesapeake Sailing Yacht Symposium, March 18–19, 2011
Paper Number: SNAME-CSYS-2011-011
... was tested in a conventional configuration at various leeway angles with the foil aligned to the center plane, in a gybing configuration at a series of angles relative to the hull, and in configurations combining hull yaw and gybing angles to simulate realistic performance. Side-force (lift) and resistance...
Proceedings Papers

Paper presented at the SNAME 19th Chesapeake Sailing Yacht Symposium, March 20–21, 2009
Paper Number: SNAME-CSYS-2009-012
... % of what strip theory predicts. low apparent wind angle aerodynamic model headsail strip theory side force experiment genoa sail force mainsail apparent wind angle wind tunnel test auckland inertia equation yacht coefficient drive force wind angle THE 19th CHESAPEAKE SAILING...
Proceedings Papers

Paper presented at the SNAME 19th Chesapeake Sailing Yacht Symposium, March 20–21, 2009
Paper Number: SNAME-CSYS-2009-002
... Since the first introduction of an expression for the assessment of the side force production of a sailing yacht as function of leeway and heel, based on the results of the Delft Systematic Yacht Hull Series, in 1981, considerable changes in appendage layouts and planforms have taken place...
Proceedings Papers

Paper presented at the SNAME 19th Chesapeake Sailing Yacht Symposium, March 20–21, 2009
Paper Number: SNAME-CSYS-2009-013
... of a foiling Moth. Specifically: the lift and drag was measured for of various home built and commercially available T-foil configurations, the hydrodynamic drag of a hull was measured at various displacements, and the aerodynamic forces (side force and drag) were measured for a hull and racks...
Proceedings Papers

Paper presented at the SNAME 18th Chesapeake Sailing Yacht Symposium, March 2–3, 2007
Paper Number: SNAME-CSYS-2007-014
... the wind tunnel tests as well as CFD simulations for angles of attack ranging from 20° to 90° in increments of 10°. These forces are resolved into drive and side forces for various angles of attack, as shown in Figure 8. Figure 8 Aerodynamic forces acting on Niagara For the purposes of the present work...
Proceedings Papers

Paper presented at the SNAME 18th Chesapeake Sailing Yacht Symposium, March 2–3, 2007
Paper Number: SNAME-CSYS-2007-004
.... Therefore a research project was set up in the Delft Shiphydromechanics Department to investigate the influence of the keel on the rudder. Aim was to improve on the side force prediction of keel and rudder and to assess the wake of the keel and the downwash on the rudder in various conditions. Based...
Proceedings Papers

Paper presented at the SNAME 18th Chesapeake Sailing Yacht Symposium, March 2–3, 2007
Paper Number: SNAME-CSYS-2007-017
... bench test yacht pressure distribution shaft high aspect ratio rudder centroid aspect ratio rudder aspect ratio upstream oil & gas side force strain gauge dynamic lift coefficient lift coefficient design purpose rudder coefficient loading THE 18th CHESAPEAKE SAILING YACHT...
Proceedings Papers

Paper presented at the SNAME 17th Chesapeake Sailing Yacht Symposium, March 4–5, 2005
Paper Number: SNAME-CSYS-2005-012
... with the results obtained during a series of full scale measurements. side force yacht appendage sway equation simulation rudder coefficient masayuma maneuver artificial intelligence resistance hull fn 0 formulation approximation tc bk mathematical model expression delft systematic yacht...
Proceedings Papers

Paper presented at the SNAME 16th Chesapeake Sailing Yacht Symposium, March 3, 2003
Paper Number: SNAME-CSYS-2003-001
... one V - vessel speed keel and rudder have been tested under a variety of Amz - yaw moment area hulls and in the DSKS a variety of keels have been Afy - side force area tested under one particular hull. Finallly the results are a22 - added mass in the transverse (Sway) mode checked against the measured...
Proceedings Papers

Paper presented at the SNAME 16th Chesapeake Sailing Yacht Symposium, March 3, 2003
Paper Number: SNAME-CSYS-2003-013
... spinnaker. created a side force that resulted in a significant measured The velocity was measured using two pressure ports in the component in the lift direction due to the design of the wind tunnel walls upstream of the test section. The dynamometer. This was eliminated by testing the models pressure...
Proceedings Papers

Paper presented at the SNAME 13th Chesapeake Sailing Yacht Symposium, January 24–25, 1997
Paper Number: SNAME-CSYS-1997-007
...: side force coefficient D: IMS reduced draft BATOPERF considers the equilibrium of the Fn: Froude number forces acting on a boat when sailing in the Fy: side force thrust and in the canoe body and appendages H 113: significant sea wave hight side force directions. A transverse plane force IMS...
Proceedings Papers

Paper presented at the SNAME 13th Chesapeake Sailing Yacht Symposium, January 24–25, 1997
Paper Number: SNAME-CSYS-1997-003
... or scaled-down offshore racers. It may be Society ofNaval Architects and used both for rig selection and for the evaluation of SA Marine Engineers different sail designs. High quality results may be SNAME Hydrodynamic side force achieved with a minimum expenditure of time and Apparent wind velocity capital...
Proceedings Papers

Paper presented at the SNAME 11th Chesapeake Sailing Yacht Symposium, January 28–30, 1993
Paper Number: SNAME-CSYS-1993-004
... forward, y to port, and z upward into the wake and another due to the port/starboard (x,y,z) Wave side force asymmetry of the radiated wave field. Free-surface elevation Yw Velocity potential The mathematical problem is specified as a lin­ Z(x,y) Perturbation potential earized boundary-value problem...
Proceedings Papers

Paper presented at the SNAME 10th Chesapeake Sailing Yacht Symposium, February 1, 1991
Paper Number: SNAME-CSYS-1991-003
... side force fn 0 resistance delft university experiment series ii delft systematic yacht hull hull form The Delft systematic Yacht Hull Series (series I) has been extended with six hull forms which cover a range of medium to very light displacements. Upright and heeled resistance...

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