Validation of the 6 DOF Viscous CFD Method for Simulating the Roll Motion on DTC

摘要

The study of roll damping is one of the most fundamental subjects ofrnship hydrodynamic performance. Based on the unsteady ReynoldsaveragedrnNavier–Stokes equations, simulation of a typical 14000 TEUrncontainer ship model (DTC) with predicted roll decay motion in calmrnwater is performed. The simulation is achieved by the method whichrninvolves higher-order upwind scheme, a blended k–ω/k–ɛ two-equationrnturbulence model, free surface tracking approach, structured oversetrngrid and 6 degrees of freedom motion method. The resulting roll periodrnis 1.74% shorter than the experimental data and the roll damping isrn21.12% larger than that. The variation of hull surface pressure andrnvortices shedding induced by the roll decay motion in a period are alsornstudied.