Finite element solution for mild-slope equation and its application

The finite element method,which suits complex domain shapes well andfits the irregular boundary conveniently,is used to salve the elliptic mild slope equation in the model of this paper.And the modified conjugate-gradient method,which solves the linear system of equations efficiently and requires less memory,is used to solve the linear system of the mild slope equation.This model is tested with the laboratory measurements of Rizhao Port waters.The results show that the model could be used in relative large region and get ideal results.