Viscous Free Surface Numerical Simulations of Oscillating SWATH Ship Sections

摘要

This study presents a solution method based on a fully viscous non-linear flow solver used to evaluate the two dimensional hydrodynamic coefficients of damping and added mass appearing in the generalized linear equations of motion of a ship in a seaway. Experiments made on a circular and a SWATH section were used to validate the direct numerical solver of Navier Stokes equations, based on finite volume technique which is implemented using the open-source libraries of OpenFOAM. Numerical results agree very well with experimental measurements for these two quite different section shapes, validating the satisfactory accuracy of the proposed method.