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1-18 of 18
Keywords: appendage
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Proceedings Papers
Paper presented at the SNAME 24th Chesapeake Sailing Yacht Symposium, June 10–11, 2022
Paper Number: SNAME-CSYS-2022-010
...). Is there a more practical, design-oriented, and sufficiently accurate approach – than existing ones – generally available to the design community to evaluate the total performance of the foil-configured yacht and its appendages? This paper describes recently developed and incorporated methods in a new VPP program...
Proceedings Papers
Paper presented at the SNAME 23rd Chesapeake Sailing Yacht Symposium, March 15–16, 2019
Paper Number: SNAME-CSYS-2019-008
... the modeling of the three or four degrees of freedom (DOFs) boat motion (surge, sway, yaw and sometimes roll). Nevertheless foiling greatly enhances the need to factor in the two other DOFs as heave (flight height) and trim (appendages angles of attack) are now at the core of boat stability (Heppel, 2015...
Proceedings Papers
Paper presented at the SNAME 21st Chesapeake Sailing Yacht Symposium, March 15–16, 2013
Paper Number: SNAME-CSYS-2013-001
... in order possesses two problems; to select the best performing boat amongst the alternatives. a) Large appendages of sailing yachts, namely keel-bulb Small geosim models are utilized to minimize the cost of combinations and rudder, are in considerable size of such testing procedure, even though scaling...
Proceedings Papers
Paper presented at the SNAME 20th Chesapeake Sailing Yacht Symposium, March 18–19, 2011
Paper Number: SNAME-CSYS-2011-006
... The vertical distribution of appendage volume for a sailing yacht is predominantly driven by the desire for the lowest possible centre of gravity due to the dependence of sail drive force on stability. This results in volume being pushed downwards regardless of hydrodynamic effects. The increase...
Proceedings Papers
Paper presented at the SNAME 19th Chesapeake Sailing Yacht Symposium, March 20–21, 2009
Paper Number: SNAME-CSYS-2009-005
... cient water density CM max. transverse section coef cient volume of displacement of canoe body weight of displacement of canoe body 55 Ixx Inertia moment of the ship around the x ber of appendages 1. At the end of the tests, only 15 models, axis 3 bulbs (with keel) and 1 rudder have been donated...
Proceedings Papers
Paper presented at the SNAME 19th Chesapeake Sailing Yacht Symposium, March 20–21, 2009
Paper Number: SNAME-CSYS-2009-001
...-like performance of the yacht in a VPP is investigated. reservoir simulation single rudder constraint spinnaker rudder investigation ac90 yacht froude number variant 3 appendage configuration ruder twin rudder yacht prediction boat speed consequence rudder configuration wind...
Proceedings Papers
Paper presented at the SNAME 18th Chesapeake Sailing Yacht Symposium, March 2–3, 2007
Paper Number: SNAME-CSYS-2007-005
...THE 18th CHESAPEAKE SAILING YACHT SYMPOSIUM ANNAPOLIS, MARYLAND, MARCH 2007 RANSE Calculation of Laminar-to-Turbulent Transition-Flow around Sailing Yacht Appendages Christoph Böhm, R&D-Centre Univ. Applied Sciences Kiel, Yacht Research Unit, Germany Kai Graf, Institute of Naval Architecture...
Proceedings Papers
Paper presented at the SNAME 18th Chesapeake Sailing Yacht Symposium, March 2–3, 2007
Paper Number: SNAME-CSYS-2007-008
... Seakeeping and Maneuvering Basin of MARIN. The present paper intends to open further potential ways to improve global performance of sailing yachts, by looking at the behavior in unsteady conditions. oblique sea yacht calm water sailing yacht carriage sailing test appendage heel angle rudder...
Proceedings Papers
Paper presented at the SNAME 18th Chesapeake Sailing Yacht Symposium, March 2–3, 2007
Paper Number: SNAME-CSYS-2007-004
... side force rudder coefficient expression formulation keel 3 hull leeway angle different keel downwash angle residual resistance keel upright condition reduction rudder angle resistance appendage yaw balance sailing yacht THE 18th CHESAPEAKE SAILING YACHT SYMPOSIUM ANNAPOLIS...
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 17th Chesapeake Sailing Yacht Symposium, March 4–5, 2005
Paper Number: SNAME-CSYS-2005-013
... The Glenn L. Martin Wind Tunnel (GLMWT) has developed specialized investigative techniques to evaluate underwater appendages for sailing yachts that have been continuously improved through practice by GLMWT staff. These specialized techniques are required to obtain the best possible differential...
Proceedings Papers
Paper presented at the SNAME 13th Chesapeake Sailing Yacht Symposium, January 24–25, 1997
Paper Number: SNAME-CSYS-1997-013
... The research explained in this paper was carried out to investigate the effects of hull-appendage interaction on the resistance of a sailing yacht, and the effects these changes have on the velocity prediction for a sailing yacht. To accomplish this aim a series of wave-cut experiments...
Proceedings Papers
Paper presented at the SNAME 13th Chesapeake Sailing Yacht Symposium, January 24–25, 1997
Paper Number: SNAME-CSYS-1997-012
... of the appendages, i.e. keel and rudder. For the sake of consistency the original DSYHS was tested with one and the same set of appendages for all models, necessary for the heeled and yawed tests, which in design reflected the standards of the mid seventies for a hull like the Parent Model #1. The wide variety...
Proceedings Papers
Paper presented at the SNAME 12th Chesapeake Sailing Yacht Symposium, January 27–28, 1995
Paper Number: SNAME-CSYS-1995-005
... structures which appear downstream of lift producing appendages. A recently implemented free-surface discretization permits the bow wave evolution to proceed to the near-breaking point. Computed results include comparisons between the inviscid and viscous flowfields about a bare-hull configuration and a full...
Proceedings Papers
Paper presented at the SNAME 12th Chesapeake Sailing Yacht Symposium, January 27–28, 1995
Paper Number: SNAME-CSYS-1995-003
... around a horirontal axis on these appendages while being in their regular position underneath the model, as well as on the model as a whole. The experiment consisted of the regular "upright" and "under leeway and heel" tests as customairaly performed in the standard testing routine for sailing yachts...
Proceedings Papers
Paper presented at the SNAME 11th Chesapeake Sailing Yacht Symposium, January 28–30, 1993
Paper Number: SNAME-CSYS-1993-020
... programs: gathering site specific environmental data; testing parametric series of hulls or appendages with associated improvements in testing methods; developing Computational Fluid Dynamics tools benchmarked by suitable experiments; developing and maintaining VPP centered design evaluation software...
Proceedings Papers
Paper presented at the SNAME 11th Chesapeake Sailing Yacht Symposium, January 28–30, 1993
Paper Number: SNAME-CSYS-1993-022
... iacc yacht massachusetts institute resistance resistance component sea wave interference drag appendage cambridge wetted surface friction hull usa decomposition sideforce total resistance form factor massachusetts institute Resistances due to hull friction, appendage...
Proceedings Papers
Paper presented at the SNAME 5th Chesapeake Sailing Yacht Symposium, January 17, 1981
Paper Number: SNAME-CSYS-1981-005
.... Hopefully, this new rule, if adopted, will clearly define when the present techniques may be used and yet still allow for future developments in kinetic techniques. hull small boat racing tack kinetic appendage body movement kinetic technique competitor THE SOCIETY OF NAVAL ARCHITECTS...