Coupling Hydrodynamic and Aerodynamic Computations to Predict Sailing Boat Behaviour

摘要

We present the coupling of two computing codes for the hull hydrodynamics and the sail aerodynamics to predict the performance of a sailing boat. The first one is a Boundary Element Method one using a Green's function (steady wave resistance or diffraction-radiation with forward speed). The aerodynamic code is based on a lifting surface model for the sails and a particle method for its wake. The motion of the sailing boat upward is studied by computing the acceleration at each time step and then deducing the velocity and position of the boat. Results are presented only in steady flow.