Prediction of Forces and Pressures on a Wedge and a Ship Section with CIP-Based Methods

This paper presents improved numerical methods to predict slamming forces/pressures on a wedge with different tilted angles and on a ship section with various drop heights. The water-entry problem was solved by using a constrained interpolation profile (CIP) method on a fixed Cartesian grid. Both incompressible and compressible solvers and three interface capturing schemes were used to examine their effects on the solutions. Effects of prescribed and free fall motions on the solution were investigated. Convergence studies were carried out using various domain sizes, grid sizes, and time steps. The grid convergence index was employed to estimate the uncertainties due to spatial discretization. Validation studies were performed by comparing numerical solutions with experimental data.