... maximum stress structural analysis fibre layout smar azure optimisation integrated fluid-structural analysis mainsail THE 22ND CHESAPEAKE SAILING YACHT SYMPOSIUM ANNAPOLIS, MARYLAND, MARCH 2016 Fully Integrated Fluid-Structural Analysis for the Design and Performance Optimisation of Fibre...

... the attached flow on the lower region of both sails, but RANS fails in capturing the separation bubble occurring at the top section of the mainsail, predicting it as either too short, non-existent, or extended for the entire chord length. However, LES correctly models the leading edge separation bubble...

... to the power transmitted to the rig and sail system by the trimming device. The effect of the camber of the design shape is investigated too. The flat mainsail design benefits more than the other mainsail designs from the dynamic trimming compared to their respective steady situation. This study presents...

... Most IRC 52 based upon existing TP52 retain their original rig proportions and mainsail girths to avoid the cost and disruption of a rig change and to not disturb he finely tuned yaw balance. It is not obvious whether the mainsail proportions essentially dictated by the TP52 box rule...

... dynamics constraint resolution objective function innovation mesh computational framework convergence sail design & al aspect ratio camber performance sailing yacht configuration solver equation mainsail THE 20th CHESAPEAKE SAILING YACHT SYMPOSIUM ANNAPOLIS, MARYLAND, MARCH 2011...

... condition was modelled using a Vortex Lattice code, while the downwind wind-tunnel test was modelled using a Navier-Stokes code. The pressures obtained from the three different methods are compared on three horizontal sections of the headsail, mainsail, and asymmetric spinnaker. In general the pressures...

... used in the wind tunnel tests does not account for unsteady effects like the aerodynamic inertia in roll due to the “added mass” of the sails. In the second part of paper the added mass moment of inertia of a mainsail is estimated by “strip theory” and found to be significant. Using expressions from...

..., wind speed, wind angle, and so on, are also measured. The tested sail configurations are as follows: mainsail with 130% jib, mainsail with 75% jib and mainsail alone. Sail shapes are measured at several height positions. The measured shape parameters are chord length, maximum draft, maximum draft...

... be made. hull windage main hull deck coefficient eff effective wind angle rig tunnel run full-scale measurement full-scale data tunnel measurement drag coefficient lift coefficient force coefficient deck plane perpendicular wind tunnel mainsail wind tunnel measurement THE 18th...

... wind angle mainsail boat THE 16th CHESAPEAKE SAILING YACHT SYMPOSIUM ANNAPOLIS, MARYLAND, MARCH 2003 Changes to Sail Aerodynamics in the IMS Rule Jim Teeters, Director of Research for US Sailing; Member, International Technical Committee Robert Ranzenbach, GLM Wind Tunnel, University of Maryland...

... wind local twist parameterization design variable computation evaluation computational cost sail configuration configuration jib dervieux optimization procedure gradient complete configuration mainsail THE 16th CHESAPEAKE SAILING YACHT SYMPOSIUM ANNAPOLIS, MARYLAND, MARCH 2003 Analysis...

... mainsail load model wind speed THE 16th CHESAPEAKE SAILING YACHT SYMPOSIUM ANNAPOLIS, MARYLAND, MARCH 2003 Downwind Load Model for Rigs of modern Sailing Yachts for Use in FEA Guenter Grabe, Yacht Research Unit, University of Applied Sciences, Kiel, Germany ABSTRACT Standard approaches to define loads...

... upstream oil & gas apparent wind angle twist distribution variation parametric analysis wind condition awa 16 initial value optimal value exit angle camber arnone configuration true wind speed force coefficient genoa camber mainsail wind speed t ) THE 16th C H E S A P E A K E...

... calculations. Numerical calculations were performed to estimate the sail forces of the boat. In the calculations, two sails, a mainsail and a jib , were modeled in the form of a vortex lattice. The vortex lattice method was adopted as the numerical calculation method. Step by step calculations were conducted...

... lar bergstrom rig reduction rigging design maximum attainable lift sarasota separation mainsail THE TWELFTH CHESAPEAKE SAILING YACHT SYMPOSIUM The Development of the B&R Rig, Structural Space Frame and Tripod Support System with Integrated Boom Lars Bergstrom, B & R Mast and Rigging Designs...

.... displacement formula yacht centerboard hull astern waterline ior iii regression analysis distance racing yacht procedure aspect ratio correction point measurement sail area particular race wetted surface mainsail No.1 THE SOCIETY OF NAVAL ARCHITECTS AND MARINE ENGINEERS 74 Trinity Place...

... Booms are dangerous and can now be done away with. The mainsail is trimmed by three sheers to three permanent backstays, (see Fig.1.). A mainsail that is luff roller furling on a rotating jackstay that is aft and parallel to the mast can be furled or reefed in seconds, (see Fig.2). The best rig...