Numerical Investigation on the Nominal Wake of KVLCC2 Model Ship in Regular Head Waves

초록

The analysis of the propulsion performance considering the ship motion in waves is an important factor for the efficient operation of a ship. The interaction between the propeller and the free surface due to the ship motion in waves has a great influence on the propulsion performance. However, most of recent researches about the hydrodynamic performance of ships in waves focus on the added resistance, and the experimental or numerical data on the propulsion performance considering the ship motion in waves is very rare. In this paper, numerical investigation on the nominal wake in regular head waves is performed for a KVLCC2 model ship at a full-load condition. Phase-averaged and instantaneous wake fields during one period are compared with the experimental data measured by SPIV showing good agreement. And the effect of the ship motion on the characteristics of wake field and the propulsion performance are investigated varying the wave length.