methods. However, it is difficult to obtain the detailed information of the flow fields such
pressure distribution, velocity distribution, vortex generation, etc. from the experiments.
Recently, Nguyen et. al. numerically studied on the several types of rudder sections as well
as the 3-D rudders with high lift force [1~ 4]. In the present study, the effects of 3-D flow on
marine rudders are numerically investigated by using a CFD commercial code, ANSYS …