Viscous, turbulent and free surface effects of the fluid flow together with the flow-induced ship motion are simultaneously considered by a single program solving the Reynolds-Averaged Navier-Stokes Equations (RANSE) and body dynamics equations. The finite-volume method used in the flow solver employs moving-grids to realize the instant position of the body motion. The flow solver is coupled with the computation of ship motion at each outer iteration. To demonstrate the capability of the method in its applications to seakeeping and manoeuvring, the motion of a Ro-Ro ferry is computed subjected to waves, showing good agreement with experiments. With a geometrically modelled rudder and a body-force simulated propeller, a turning-circle manoeuvre is performed for a container ship, producing reasonable yaw rate, flow field and wave pattern.
展开▼
