A Fundamental Study on the Reduction of Added Resistance for KCS

초록

Due to tight regulations on CO2 emission, interest in the resistance on a ship in waves is increasing. This paper present a numerical simulation method for the flow around a ship in regular head waves in order to calcu-late the added resistance. The continuity equation and Navier-Stokes equations are numerically calculated in a fixed rectilinear grid system. The free surface flow near the ship is simulated by the modified marker-density (MMD) method. The ship studied in this research is KRISO container ship (KCS). During the numerical simulations, the heave and pitch motions are set free, but other motions are set fixed. Varying the wave length, the characteristics of the added resistance are investigated. The flare shape is modified to reduce the added resistance. The flare modification-induced reduction of added resistance is evaluated by numerical computation.