ABSTRACT

The problem of ship maneuvering in waves has strong connection with navigation safety, the stability in waves, the performance of ships in service and it attracts more attentions nowadays. However, an accurate and practical method is still under research and development. Mathematical model method is the most widely used approach, in which the hydrodynamic derivatives are crucial. Therefore, several experiments have conducted to measure the wave impact on the coefficients. Nevertheless, few numerical simulations have been done due to the complex conditions and unsolved technical difficulties. In this paper, the maneuvering in following was has been focused and a Reynolds Averaged Navier-Stokes (RANS) solver was utilized to simulate the PMM tests in following waves according to the experiments (Son et al., 1982) which could achieve the surf-riding condition. By the simulation, the linear velocity-dependent derivatives through oblique towing tests were obtained. And the results are validated using experiment results which shows good agreement. Finally, the reason leading to the difference in different relative position between ship and wave are discussed.