Numerical modeling of the long wave passing above the submerged barrier

The new method for the numerical simulation of partial reflection of the long waves off the submerged vertical barrier was developed and tested. This method is based on the inner boundary condition which takes into account the wave energy loss due to such a kind of reflection. The method was implemented into the MOST numerical algorithm which have been used for estimation of the submerged barrier protection ability against tsunami wave entering the Oppa harbor.