Fully Non-linear Cfd Techniques for Ship Performance Analysis and Design

Non-oscillatory discretization methods based on the Local Extremum Diminishing principle, which were originally devised for compressible flow, are applied to the free-surface evolution equation. More specifically, both symmetric and upstream limited schemes are utilized in the calculation of the flow about the Series 60 hull, a naval frigate hull with sonar dome and transom stern, and a fully configured IACC yacht hull at an angle-ofattack. The new free surface discretization techniques improve the overall numerical approach which has become sufficiently accurate, robust, and efficient to be used routinely in a design environment.