2. Geometry and conditions
As the KVLCC2 hull form is used for seakeeping and total resistance simulations, the geometry of the KVLCC2 ship model is given in Fig. 1. G is the center of gravity, which is the origin of a ship-fixed reference frame, it is set in the plane of the undisturbed free surface; the z axis is the vertical direction, positive upward, the x axis is in the aft direction, and y the lateral direction. In order to evaluate the numerical and experimental results, a right-handed coordinate system is used (Panahani et al., 2009). The model hull does not have a rudder and a propeller. The KVLCC2 model has a scale of 1/58 that is implemented for the numerical calculations. Table 1 gives the model ship and main ship particulars.