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Keywords: simulation
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Proceedings Papers

Paper presented at the SNAME 24th Chesapeake Sailing Yacht Symposium, June 10–11, 2022
Paper Number: SNAME-CSYS-2022-005
... sustainable development upstream oil & gas climate change sustainability freight & logistics services marine transportation social responsibility flettner rotor ppp mast rotation simulation engine drive force leeway dynarig wind angle ship yacht commercial shipping...
Proceedings Papers

Paper presented at the SNAME 24th Chesapeake Sailing Yacht Symposium, June 10–11, 2022
Paper Number: SNAME-CSYS-2022-002
... coefficients of the NACRA 17 hydrofoils are determined based on unsteady Computational Fluid Dynamics (CFD) simulations with a free surface. In the simulations the foil is moved in prescribed motions in one degree of freedom (DOF) at a time and dynamic coefficients are extracted for different frequencies...
Proceedings Papers

Paper presented at the SNAME 24th Chesapeake Sailing Yacht Symposium, June 10–11, 2022
Paper Number: SNAME-CSYS-2022-007
... speed and direction is required. Using a two-dimensional section of the wingsail, lift and drag characteristics were found using Reynolds Averaged Navier-Stokes (RANS) simulations within Star-CCM+. A modified lifting line (LL) model was programmed in Python which used the twodimensional characteristics...
Proceedings Papers

Paper presented at the SNAME 24th Chesapeake Sailing Yacht Symposium, June 10–11, 2022
Paper Number: SNAME-CSYS-2022-009
... be trained and learned by means of computer simulations to assess a large range of approaches to the starting box. This project used game theory to model the start of a match race, intending to develop and study strategies using Monte-Carlo tree search to estimate the utility of a player’s potential moves...
Proceedings Papers

Paper presented at the SNAME 24th Chesapeake Sailing Yacht Symposium, June 10–11, 2022
Paper Number: SNAME-CSYS-2022-016
.... Various structural configurations will be analysed using the framework outlined in this paper. artificial intelligence wedge deadrise angle water impact problem upstream oil & gas transverse section mesh solver vof method water impact simulation free surface impact event...
Proceedings Papers

Paper presented at the SNAME 23rd Chesapeake Sailing Yacht Symposium, March 15–16, 2019
Paper Number: SNAME-CSYS-2019-003
... be an improvement over existing methods, simulating the 6 degrees of freedom motions and accelerations. The unique un-restrained sailing test approach uses a mast mounted air screw device to simulate the aerodynamic propulsion from the sails allowing a scaled model of the yacht to be tested at a range...
Proceedings Papers

Paper presented at the SNAME 23rd Chesapeake Sailing Yacht Symposium, March 15–16, 2019
Paper Number: SNAME-CSYS-2019-007
... Maneuver Simulation and Optimization for AC50 Class Dr. Heikki Hansen, Oracle Team USA / DNV GL SE, Potsdam, Germany Dr. Karsten Hochkirch, Oracle Team USA / DNV GL SE, Potsdam, Germany Ian Burns, Oracle Team USA, San Francisco, USA Scott Ferguson, Oracle Team USA, San Francisco, USA ABSTRACT...
Proceedings Papers

Paper presented at the SNAME 23rd Chesapeake Sailing Yacht Symposium, March 15–16, 2019
Paper Number: SNAME-CSYS-2019-009
... of a bi-dimensional section of a spinnaker, will also be presented here for the first time. These results allow to interpret some inconsistent data from past experiments and simulations, and to provide guidance for future model testing and sail design. NOTATION AoA Angle of Attack CFD Computational Fluid...
Proceedings Papers

Paper presented at the SNAME 23rd Chesapeake Sailing Yacht Symposium, March 15–16, 2019
Paper Number: SNAME-CSYS-2019-010
... Force represents the image of this load applied at point A (the point where the actuator is fixed). Figure 6: Rudder mechanism Figure 7: Results of the load model This load model is validated thanks to the instrumentation of a sailboat. As shown in the graph above (Figure 7), the load simulation from...
Proceedings Papers

Paper presented at the SNAME 22nd Chesapeake Sailing Yacht Symposium, March 18–19, 2016
Paper Number: SNAME-CSYS-2016-012
... of an A-Class catamaran is simulated by using the RANSE software FineMarine with its volume of fluid method. The C-shaped hydrofoil is analysed for one speed at Froude Number 7.9 and various angles of attack (AoA). The rake was defined and a leeway angle was applied to simulate realistic set ups...
Proceedings Papers

Paper presented at the SNAME 22nd Chesapeake Sailing Yacht Symposium, March 18–19, 2016
Paper Number: SNAME-CSYS-2016-010
... in the literature. The wave excitation is limited to the calculation of Froude - Krylov forces. logic & formal reasoning spyrou yacht wave position sailing yacht logic programming calculation excitation coefficient artificial intelligence simulation hull proceedings formulation element...
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 20th Chesapeake Sailing Yacht Symposium, March 18–19, 2011
Paper Number: SNAME-CSYS-2011-010
... are selected for the comparison, and both shapes are analyzed with numerical simulations and physical experiments. We study the change in sailboat performance due to the different aerodynamic and material properties of the rigging. A velocity prediction program (VPP) is used to quantify the performance change...
Proceedings Papers

Paper presented at the SNAME 20th Chesapeake Sailing Yacht Symposium, March 18–19, 2011
Paper Number: SNAME-CSYS-2011-007
... by simplified theoretical or empirical models potentially neglecting complex physical phenomena. The paper proposes a method circumventing these inaccuracies. It is based on the idea to directly derive Sailing Yacht performance from a RANSE flow simulation. This is done by coupling the prediction of sail forces...
Proceedings Papers

Paper presented at the SNAME 20th Chesapeake Sailing Yacht Symposium, March 18–19, 2011
Paper Number: SNAME-CSYS-2011-002
... increasing performances achieved by racing the structural effect of varying stresses and strains due to yachts all over the world. As yacht racing competitiveness the motion and inertia. The simulation results from the FSI is growing there is an increasing need for more and more model compare very well...
Proceedings Papers

Paper presented at the SNAME 20th Chesapeake Sailing Yacht Symposium, March 18–19, 2011
Paper Number: SNAME-CSYS-2011-013
... Virtual Sailing (VS) has been producing the world’s only ride-on sailing simulator for 10 years. Based on fundamental principles of sailing dynamics the underlying simulation has shown great robustness permitting significant R&D to be performed and retrofitted to existing simulators...
Proceedings Papers

Paper presented at the SNAME 19th Chesapeake Sailing Yacht Symposium, March 20–21, 2009
Paper Number: SNAME-CSYS-2009-006
... and explore how the industry can improve these tools in the future. open source developer artificial intelligence simulation software engineering turkshead framework knowledge management platform open source software vpp software development application requirement spreadsheet yacht...
Proceedings Papers

Paper presented at the SNAME 19th Chesapeake Sailing Yacht Symposium, March 20–21, 2009
Paper Number: SNAME-CSYS-2009-010
... ship simulation heel angle maximum drive niagara apparent wind angle awv 2 variation sailing vessel sail trim force coefficient sail combination baltimore ii cfd simulation side force coefficient wind speed coefficient correction pride ii A program to assess the wind-heel...
Proceedings Papers

Paper presented at the SNAME 18th Chesapeake Sailing Yacht Symposium, March 2–3, 2007
Paper Number: SNAME-CSYS-2007-005
... upstream oil & gas simulation appendage boundary layer grid completion installation and operations transition turbulence intensity investigation kinetic energy destruction term calculation ballast bulb turbulent flow variant reynolds number equation benchmark bulb momentum...

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