NUMERICAL SEAKEEPING ANALYSIS OF CONTAINER SHIP IN REGULAR WAVES IN VARIOUS WAVE DIRECTIONS

Abstract

Today route simulation plays an important role for ship owners and operators to check the performance of ship sailing under environmental disturbance such as wind, wave and current. In addition, sea waves have a great influence on the ship’s structure as well as the seakeeping performance of a ship. It is very important to estimate the correct induced wave force for analyzing seakeeping performance of a ship. In the present study, a numerical seakeeping analysis of a KRISO container ship (KCS) was performed in regular waves in various wave directions. The hydrodynamic interactions between the ship  and the regular  waves  were investigated  using  Panel Method.  The  numerical seakeeping analyses were performed in AQWA software. KCS was selected in this study and the numerical analysis of heave and pitch in head sea condition have been compared with the experimental result. The result of the heave and pitch motions of KCS in head sea conditions in the present study have good agreement with the experimental result. The effect of wavelength on characterizing the motion response of a ship in various wave direction was discussed. Particularly, the numerical results in this study can be useful for estimating relative motion and relative velocity of a ship for determining the optimal route avoiding the slamming and deck wetness.