Numerical Simulation of Tsunami Run-up and Inundation Employing Horizontal Two-dimensional Model Based on CIP Method

A two-dimensional tsunami run-up and inundation model based on a CIP method was developed in this study so as to satisfy the continuity equation with reasonable accuracy. Numerical simulations on tsunami bore were carried out in order to validate the model and discuss the effects of wet-dry condition and overflow condition on the calculation accuracy. As a result, the model was confirmed to be able to represent closely actual water surface profile by using the slip condition on the wet-dry condition. Furthermore, the numerical results without the overflow formula were found to be in good agreement with the experimental ones.