IMPROVING THE RESISTANCE OF A SERIES 60 VESSEL WITH A CFD CODE

An hydrodynamic study was carried out of a series 60 vessel model using a CFD RANS (Reynolds Averaged Navier-Stokes Equations ) based code, with the aim of calculating the pressure gradient and shear stresse s of the flow around the vessel, and the associated wave train generated at the interfac e of two fluids (free Surface), for Froude numbers in the range of 0.18 to 0.34. The da ta were validated with previous published experimental tests. Different mesh size w as used in the present study to determine the most appropriate one. The use of a zo ne with turbulent properties is a fundamental aspect in viscous flow simulation. For the solution of the governing equations two turbulence models for the turbulent vare evaluated. They are: Shear Stress Transport (SST) and the K-� model. Subsequent to obtaining these results, a study to optimize the hydrodynamic resistance was conducted, so that the hull of the ship was modified by adding a bow bulb, which were analyzed with two different lengths, obtaining the best alternative