@Article{JCM-34-462, author = {Lu , FuqiangSong , Zhiyao and Zhang , Zhuo}, title = {A Compact Fourth-Order Finite Difference Scheme for the Improved Boussinesq Equation with Damping Terms}, journal = {Journal of Computational Mathematics}, year = {2016}, volume = {34}, number = {5}, pages = {462--478}, abstract = {

In this paper, a compact finite difference method is presented for solving the initial boundary value problems for the improved Boussinesq equation with damping terms. The fourth-order equation can be transformed into a first-order ordinary differential system, and then, the classical Padé approximation is used to discretize spatial derivative in the nonlinear partial differential equations. The resulting coefficient matrix for the semi-discrete scheme is tri-diagonal and can be solved efficiently. In order to maintain the same order of convergence, the classical fourth-order Runge-Kutta method is the preferred method for explicit time integration. Soliton-type solutions are used to evaluate the accuracy of the method, and various numerical experiments are designed to test the different effects of the damping terms.

}, issn = {1991-7139}, doi = {https://doi.org/10.4208/jcm.1603-m2014-0193}, url = {http://global-sci.org/intro/article_detail/jcm/9807.html} }