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Proceedings Papers

Paper presented at the SNAME 24th Chesapeake Sailing Yacht Symposium, June 10–11, 2022
Paper Number: SNAME-CSYS-2022-001
...) [O] Fluid Density [kg m-3] Angular Velocity [rad s-1, rad s-1, rad s-1] AOA Angle of Attack [O] AWA Apparent Wind Angle [O] AWS Apparent Wind Speed [kn] ALAT Lateral Hull Area [m2] c Chord length [m] Cdi Induced drag coefficient Cdv Viscous drag coefficient CHM Crossmember constant Cl Lift...
Proceedings Papers

Paper presented at the SNAME 24th Chesapeake Sailing Yacht Symposium, June 10–11, 2022
Paper Number: SNAME-CSYS-2022-013
... coefficients and velocities of the vessel through the water. The coefficients were obtained from virtual captive tests (VCT) of the full-scale vessel. For more details about the VCT method, see (Alexandersson et al. 2017). The use of these anoeuvring derivatives is convenient since they are also used...
Proceedings Papers

Paper presented at the SNAME 24th Chesapeake Sailing Yacht Symposium, June 10–11, 2022
Paper Number: SNAME-CSYS-2022-002
... coefficients are used and the applied velocities are corrected with boat motions. The hydrodynamic forces of a fully foiling boat can be computed in a similar fashion, but this method fails to include the effect of changes in the free surface as well as added mass. This paper proposes an approach where dynamic...
Proceedings Papers

Paper presented at the SNAME 24th Chesapeake Sailing Yacht Symposium, June 10–11, 2022
Paper Number: SNAME-CSYS-2022-003
... transition geometry correction blockage tunnel reynolds number free surface experiment coefficient water tunnel drag coefficient university blockage ratio wind tunnel THE 24TH CHESAPEAKE SAILING YACHT SYMPOSIUM ANNAPOLIS, MARYLAND, JUNE 2022 Development of a blockage correction for highly...
Proceedings Papers

Paper presented at the SNAME 24th Chesapeake Sailing Yacht Symposium, June 10–11, 2022
Paper Number: SNAME-CSYS-2022-007
... of wingsails for maximum performance. NOTATION AWA AWS AoA Apparent wind angle Apparent wind speed (m s-1) Angle of Attack Local flap angle w.r.t main element chord CFD Ci CD CL CM CoE D FD FS h HPC HM L LL L/D RANS Re TWA TWS u VPP VindC ZC Computational Fluid Dynamics Local chord (m) Coefficient of drag...
Proceedings Papers

Paper presented at the SNAME 24th Chesapeake Sailing Yacht Symposium, June 10–11, 2022
Paper Number: SNAME-CSYS-2022-012
... of attack (m) Free-surface elevation (m) Wavelength (kg/m3) Fluid density Amax (m) Maximum free-surface elevation Amin (m) Minimum free-surface elevation c (m) Chord length CD Drag coefficient CL Lift coefficient Fr Froude number (chord-based) g (m/s2) Acceleration of gravity h (m) Submergence depth p...
Proceedings Papers

Paper presented at the SNAME 23rd Chesapeake Sailing Yacht Symposium, March 15–16, 2019
Paper Number: SNAME-CSYS-2019-001
... be expected to occur naturally at model scale. Definition of drag, lift, resistance, side-force coefficients The main model dimensions are given in Table 2. Coefficients are made dimensionless using the product of area and dynamic pressure. The reference area, A, is normally the immersed projected side area...
Proceedings Papers

Paper presented at the SNAME 23rd Chesapeake Sailing Yacht Symposium, March 15–16, 2019
Paper Number: SNAME-CSYS-2019-004
... Foil chord Oswald Efficiency Factor Drag Coefficient Induced Drag Coefficient Wave Drag Coefficient Junction Drag Coefficient Wave and Spray Drag Coefficient Lift Coefficient Lift Coefficient at immersion h DA Drag Area Junction Drag Wave and Spray Drag Immersion LA Lift Area Re Reynolds Number...
Proceedings Papers

Paper presented at the SNAME 23rd Chesapeake Sailing Yacht Symposium, March 15–16, 2019
Paper Number: SNAME-CSYS-2019-006
... Center of buoyancy c Chord of the section (m) Cp Prismatic coefficient G Center of gravity of the yacht g Gravity acceleration (m.s-2) Ix Roll moment of inertia (kg.m2) Iy Pitch moment of inertia (kg.m2) Iz Yaw moment of inertia (kg.m2) Ixy Roll and pitch product of inertia (kg.m2) Ixz Roll and yaw...
Proceedings Papers

Paper presented at the SNAME 23rd Chesapeake Sailing Yacht Symposium, March 15–16, 2019
Paper Number: SNAME-CSYS-2019-008
... marine transportation appendage yacht maneuver configuration chesapeake sailing yacht symposium response amplitude operator high performance yacht design conference annapolis sailing yacht numerical tool nante modeling boat speed coefficient evolution reservoir simulation...
Proceedings Papers

Paper presented at the SNAME 23rd Chesapeake Sailing Yacht Symposium, March 15–16, 2019
Paper Number: SNAME-CSYS-2019-013
... length froude number effective aspect ratio lift coefficient chesapeake sailing yacht symposium coefficient chord length variation transom-hung rudder rudder strut A Case Study on the Effect of Sweep and Variations in Free-Surface Cross Section Geometry on the Lift and Drag of Transom-Hung...
Proceedings Papers

Paper presented at the SNAME 23rd Chesapeake Sailing Yacht Symposium, March 15–16, 2019
Paper Number: SNAME-CSYS-2019-014
... performance, sail performance, steady sailing performance and maneuvering performance. calculation high-speed sailing kanazawa institute jib variation sailing resistance wind speed wetted area solidfromphoto coefficient rudder twa center board thrust spinnaker heel angle olympic games...
Proceedings Papers

Paper presented at the SNAME 22nd Chesapeake Sailing Yacht Symposium, March 18–19, 2016
Paper Number: SNAME-CSYS-2016-010
... of the steady form of the Lifting Surface Theory, in order to obtain the force and moment coefficients, while the deformed shape of each sail is obtained using a relatively simple Shell Finite Element formulation. The hydrodynamic part consists of modeling hull reaction, hydrostatic and wave forces...
Proceedings Papers

Paper presented at the SNAME 22nd Chesapeake Sailing Yacht Symposium, March 18–19, 2016
Paper Number: SNAME-CSYS-2016-005
... velocity made good downwind is measured from the on-the-water experiments, and is associated with an increase of thrust during characteristic dynamics of the airfoil or sail shape in the laboratory. centerline stripe geometry draft stripe frequency sail section coefficient cornell university...
Proceedings Papers

Paper presented at the SNAME 22nd Chesapeake Sailing Yacht Symposium, March 18–19, 2016
Paper Number: SNAME-CSYS-2016-001
... upstream oil & gas resistance investigation artificial intelligence constraint wake sheet span optimization problem vorticity coefficient daggerboard solver vortex filament drag coefficient wind speed rudder wing free vortex filament reservoir simulation catamaran boat...
Proceedings Papers

Paper presented at the SNAME 22nd Chesapeake Sailing Yacht Symposium, March 18–19, 2016
Paper Number: SNAME-CSYS-2016-009
... simulation oscillation upstream oil & gas design shape coefficient amplitude frequency cf sheet yacht sail chesapeake sailing yacht symposium aerodynamic force annapolis dynamic trimming auckland camber msflat mainsail validation An experiment was developed...
Proceedings Papers

Paper presented at the SNAME 22nd Chesapeake Sailing Yacht Symposium, March 18–19, 2016
Paper Number: SNAME-CSYS-2016-002
... upstream oil & gas measured data coefficient sensor hull distortion vpp simulation contour boat speed correction shape stripe standard deviation awa stripe anemometer ran rudder angle boat This paper compares performance predictions from a Reynolds Averaged Navier...
Proceedings Papers

Paper presented at the SNAME 22nd Chesapeake Sailing Yacht Symposium, March 18–19, 2016
Paper Number: SNAME-CSYS-2016-008
.... Significant spatio-temporal patterns are detected in the pressure distribution. In this paper we present averages and main fluctuations of pressure distributions and of load coefficients for different apparent wind angles as well as a refined analysis of pressure fluctuations, using the Proper Orthogonal...
Proceedings Papers

Paper presented at the SNAME 22nd Chesapeake Sailing Yacht Symposium, March 18–19, 2016
Paper Number: SNAME-CSYS-2016-007
... development, is also described. pressure strips investigation measurement system pressure tap pressure distribution pressure system configuration wind tunnel test pressure measurement system coefficient politecnico main sail sensor scanner jib THE 22ND CHESAPEAKE SAILING YACHT...

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