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Keywords: experiment
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Proceedings Papers

Paper presented at the SNAME 23rd Chesapeake Sailing Yacht Symposium, March 15–16, 2019
Paper Number: SNAME-CSYS-2019-009
..., and the numerical and experimental work demonstrating its presence and impact on sailing performance. Then, the correlation between full-scale experiments, numerical simulations and model-scale testing are presented, focusing on recent findings and discrepancies. Successively, novel results are introduced...
Proceedings Papers

Paper presented at the SNAME 22nd Chesapeake Sailing Yacht Symposium, March 18–19, 2016
Paper Number: SNAME-CSYS-2016-003
... optimization procedure optimization convergence noise numerical model optima experiment algorithm solver wind tunnel evaluation fsi problem gp model THE 22nd CHESAPEAKE SAILING YACHT SYMPOSIUM ANNAPOLIS, MARYLAND, MARCH 2016 Experimental and numerical trimming optimizations for a mainsail...
Proceedings Papers

Paper presented at the SNAME 22nd Chesapeake Sailing Yacht Symposium, March 18–19, 2016
Paper Number: SNAME-CSYS-2016-005
... experimentally investigate the unsteady aerodynamics associated with two such techniques, “upwind leech flicking" and “downwind S-turns". We employ a two-part approach. First, on-the-water experiments are carried out using a Laser class sailboat sailed by Olympic and world championship level sailors. Data...
Proceedings Papers

Paper presented at the SNAME 22nd Chesapeake Sailing Yacht Symposium, March 18–19, 2016
Paper Number: SNAME-CSYS-2016-006
... a steady RANS calculation, although the computational time increases by a factor of 50. reservoir simulation calculation experiment fluid dynamics mesh surface streamline auckland edge separation bubble separation bubble pressure coefficient headsail mainsail configuration experimental...
Proceedings Papers

Paper presented at the SNAME 22nd Chesapeake Sailing Yacht Symposium, March 18–19, 2016
Paper Number: SNAME-CSYS-2016-008
... or the ratio of membrane stress to wind pressure. EXPERIMENTAL SETUP Full-Scale testing does not have those issues, and permits to determine yacht performance in real sailing conditions. An instrumented J/80 class sailing yacht, an 8 meter one- Those experiments need complex set-up in a harsh envi- design...
Proceedings Papers

Paper presented at the SNAME 22nd Chesapeake Sailing Yacht Symposium, March 18–19, 2016
Paper Number: SNAME-CSYS-2016-012
...] Harwood, C.M., Experimental and Numerical experiments should either be conducted on a sufficiently Investigation of Ventilation Inception and Washout stiff test object or provide measurements of the foil Mechanisms of a Surface-Piercing Hydrofoil , 30th deflection. For numerical investigations, Fluid...
Proceedings Papers

Paper presented at the SNAME 20th Chesapeake Sailing Yacht Symposium, March 18–19, 2011
Paper Number: SNAME-CSYS-2011-010
... by comparing the time required to sail two different race courses. simulation coefficient configuration vpp analysis yacht aerodynamic coefficient experimental result margin of victory favorable section experiment quantify drag coefficient university aerodynamic performance scr airfoil...
Proceedings Papers

Paper presented at the SNAME 19th Chesapeake Sailing Yacht Symposium, March 20–21, 2009
Paper Number: SNAME-CSYS-2009-008
... are investigated and examined. spinnaker wind tunnel test coefficient wind tunnel frequency yacht apparent wind speed dynamic condition apparent wind angle experiment pitch amplitude wind speed artificial intelligence design shape frequency range aerodynamic force THE 19th CHESAPEAKE...
Proceedings Papers

Paper presented at the SNAME 19th Chesapeake Sailing Yacht Symposium, March 20–21, 2009
Paper Number: SNAME-CSYS-2009-009
... The aerodynamic behaviour of a 48’ yacht rig 3D scale model was characterized by means of wind tunnel tests. The experimental campaign, performed in the Politecnico di Milano Twisted Flow Wind Tunnel, allowed to characterize the aerodynamic forces using forced motion tests and to study...
Proceedings Papers

Paper presented at the SNAME 19th Chesapeake Sailing Yacht Symposium, March 20–21, 2009
Paper Number: SNAME-CSYS-2009-012
... inertia of a model sail. One end of a string was attached to a pulley on the shaft These experiments are summarized in the next paragraphs. while the other end was attached to a weight of mass m. At t = 0 the weight was released and the angle and its rate 3.3.1 Experimental Setup were recorded. From...
Proceedings Papers

Paper presented at the SNAME 19th Chesapeake Sailing Yacht Symposium, March 20–21, 2009
Paper Number: SNAME-CSYS-2009-014
... to the helmsman. Although she flew well, was very controllable, and was spectacular to watch, Rocker could not match the 20 knot plus speed of Alpha. rocker experiment daggerboard wing foil rudder flap construction cogito crossbeam hull daggerboard c-class catamaran championship knot hardsail...
Proceedings Papers

Paper presented at the SNAME 18th Chesapeake Sailing Yacht Symposium, March 2–3, 2007
Paper Number: SNAME-CSYS-2007-010
... the relative mechanical performances of sandwich beams cored both with ARPRO® and SAN foams. Comparison of the static and dynamic response ofthe two materials shows that ARPRO® is a potentially competitive core material for composite sandwich construction. reservoir characterization experiment core...
Proceedings Papers

Paper presented at the SNAME 18th Chesapeake Sailing Yacht Symposium, March 2–3, 2007
Paper Number: SNAME-CSYS-2007-002
... are composed of measurements under various sail trimming. The experimental value of CL in the figure (a) varies from 0.91 to 1.61. The calculated results of CL by VLM show good agreement with the experiments at less than AWA range of 35 degrees. In the range of over 35 degrees, although the calculated results...
Proceedings Papers

Paper presented at the SNAME 17th Chesapeake Sailing Yacht Symposium, March 4–5, 2005
Paper Number: SNAME-CSYS-2005-011
... the dynamic motions of a yacht model scale. whilst re-righting, (Renilson and Binns, 2001). As such a combined experimental and theoretical project was wl 11 developed. The entire project was divided up into 5 tasks wl 10 as wl 9 1. re-righting experiments with the yacht unconstrained (Renilson and Binns...
Proceedings Papers

Paper presented at the SNAME 16th Chesapeake Sailing Yacht Symposium, March 3, 2003
Paper Number: SNAME-CSYS-2003-012
.... strength rudder experiment criteria laminate research project knot midshipmen student abs guide unpublished report boat keel design resistance navy 44 vpp naval academy demeyer THE 16th CHESAPEAKE SAILING YACHT SYMPOSIUM ANNAPOLIS, MARYLAND, MARCH 2003 Student Research Projects...
Proceedings Papers

Paper presented at the SNAME 15th Chesapeake Sailing Yacht Symposium, January 26, 2001
Paper Number: SNAME-CSYS-2001-007
... or augment existing polar plots for the effect of a following sea. The simulation is comprised of three main modules: the wave induced longitudinal force, the resistance force and the sail aerodynamic force. The resistance and wave force modules have been validated through semi-captive model experiments...
Proceedings Papers

Paper presented at the SNAME 14th Chesapeake Sailing Yacht Symposium, January 29–30, 1999
Paper Number: SNAME-CSYS-1999-014
...) will be presented. experiment sailing yacht ship hydromechanic lab hydrodynamic force systematic series delft systematic yacht hull series dsyh laboratory delft univ larger variety assessment hull resistance formulation equation wSAILING. HE 14th CHESAPEAKE SAILING YACHT SYMPOSIUM...
Proceedings Papers

Paper presented at the SNAME 13th Chesapeake Sailing Yacht Symposium, January 24–25, 1997
Paper Number: SNAME-CSYS-1997-011
... than were tested in this experiment (wavelengths greater than five model lengths), the added resistance of the model converges to the still­water resistance. The experiment also verifies that the added resistance is proportional to the square of the wave height. The pitch and heave characteristics...
Proceedings Papers

Paper presented at the SNAME 13th Chesapeake Sailing Yacht Symposium, January 24–25, 1997
Paper Number: SNAME-CSYS-1997-015
... the results of the present work and previous experimentation, with motion in earth axes, showed similar trends. However the results from the experiments using motion in body axes showed marked changes in the measured motion and resistance characteristics when compared to the earth axes data. It is thought...
Proceedings Papers

Paper presented at the SNAME 13th Chesapeake Sailing Yacht Symposium, January 24–25, 1997
Paper Number: SNAME-CSYS-1997-010
... from each load cell into the four others. A measure ofthe linearity over the whole range of loading means the encounter frequency w. is they will encounter in an experiment is also obtained. w. = w0 - kv This matrix is then used to correct experimental data and remove this influence, (Ferris, 1993...

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