... these response surfaces can require 100’s or 1000’s of computation results covering both ranges in state variables (speed, heel, yaw) as well as different configuration options (control surface angles, keel cant etc.) For high level programs with suitable budgets the use of high-fidelity free-surface RANS...

... effect wind tunnel test experiment pressure distribution gothenburg arrangement configuration numerical model coordinate system wind angle university wind tunnel reynolds number THE 24T H CHESAPEAKE SAILING YACHT SYMPOSIUM ANNAPOLIS, MARYLAND, JUNE 2022 Multi-wing sails interaction effects...

... for maximum performance. machine learning artificial intelligence graf order model accuracy simulation prediction stall surrogate model coefficient wingsail profile ll model camber drive force ll code configuration flap angle southampton profile optimisation ran simulation machine...

.... machine learning evolutionary algorithm artificial intelligence optimization problem thickness design space failure criterion stiffener yacht design process laminate composite material composite structure safety factor pa mass zenkert & battley configuration optimisation plate theory...

..., transition and hydrofoil. The yacht is a lightweight monohull designed for light wind conditions with a variable number of crew members. The design includes a self-stabilizing hydrofoil configuration and an elevator rudder. The software tool, which is used for the velocity prediction program, is FS...

...). 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...

... the second one presents the yacht evolution in unsteady wind demonstrating how in varying conditions the boat may reach attitudes that widely differ from the steady ones. configuration marine transportation nante appendage chesapeake sailing yacht symposium modeling yacht high performance yacht...

... of catamaran architecture on performance is studied by combining VPP predictions with CFD modeling of various deck/cabin configurations. A summary of safety requirements specific to catamarans is given. Case studies are presented number of cruising catamarans designed by AMD; a new prospective concept of a 44...

... their numerical results. configuration heave canoe body transition resistance rudder deflection maskew reservoir characterization heel 25 upstream oil & gas fn 0 wide light project grid separation crest prediction variation flosim free surface heel 15 calculation THE 23RD...

... of conditions, sea states and wave directions (from head seas to following waves). These tests can be used as a comparative tool to assess controllability and seakeeping characteristics of multiple configurations (e.g. hull shape, appendages, inertias) by quantifying induced motions and providing an estimate...

... auckland recirculation bubble headsail configuration experimental data wind tunnel mainsail THE 22nd CHESAPEAKE SAILING YACHT SYMPOSIUM ANNAPOLIS, MARYLAND, MARCH 2016 A Comparison of RANS and LES for Upwind Sailing Aerodynamics Stefano Nava, University of Auckland, Auckland, New Zealand John...

..., some results obtained during a wind tunnel campaign carried out at Politecnico di Milano Wind Tunnel, as a benchmark of the whole measuring system for future full scale application, are reported and discussed in details. Moreover, the system configuration for full scale testing, which is still under...

... is almost entirely attributable to differences in the induced drag. centerline elliptical distribution side force upper draft stripe sail trim drive force configuration sheet tension traveler lift distribution traveler position draft stripe true wind angle photograph boat sail plan...

..., at both high and low speeds, resistance increased considerably in all configurations. This is thought to be due to increased bow-wetted surface and loss of lift due to excessively decreased trim at the higher speeds. However, it is believed that this study shows that there is considerable merit...

... was tested in a conventional configuration at various leeway angles with the foil aligned to the center plane, in a gybing configuration at a series of angles relative to the hull, and in configurations combining hull yaw and gybing angles to simulate realistic performance. Side-force (lift) and resistance...

... by comparing the time required to sail two different race courses. favorable section aerodynamic performance simulation yacht experiment scr airfoil coefficient aerodynamic coefficient quantify aerodynamic force configuration experimental result drag coefficient lift coefficient vpp...

...) solver for the fluid part and on a nonlinear structural modelling for the structural part. A loose coupling of both models has been implemented to be able to make Fluid-Structure Interaction simulations on various sail configurations and to investigate the relation between a design shape and its...

... of the design space aiding in comprehension and optimization of high performance yachts. This paper will present selected examples from a research study based around tow tank tests and CFD simulations of a canonical high-performance racing yacht. The geometry configurations studied were fully appended...

... intelligence reservoir simulation upstream oil & gas strength calculation yacht time step contribution free surface boundary condition fiber membrane coefficient vector geometry maskew configuration displacement effect grid gradient separation equation THE 19th CHESAPEAKE SAILING...

...-like performance of the yacht in a VPP is investigated. reservoir simulation single rudder constraint froude number ruder spinnaker twin rudder variant 3 yacht rudder prediction appendage boat speed investigation rudder configuration configuration consequence ac90 yacht wind...