Numerical Simulation of Wave Interaction with Coastal Structures using a CIP-based Method

Numerical simulation of nonlinear interactions between water wave and coastal structures is performed using a high-order difference method. In the model, a multiphase flow model based on the Navier-Stokes equations using a constrained interpolation profile (CIP) method for the flow solver is used to estimate wave-structure interactions. A more accurate interface capturing scheme, the VOF/WLIC scheme (WLIC: weighed line interface calculation), is adopted as the interface capturing method. Water wave interacting with submerged breakwater is computed and compared with available experiments. Main attentions are paid to the wave profile and velocity-pressure domain. Comparisons with experimental date show good agreements. It is demonstrated that the proposed model is capable of reproducing the nonlinear flow phenomena and capture the complex free surface flow accurately.