Numerical Solutions of Two-Way Propagation of Nonlinear Dispersive Waves Using Radial Basis Functions

Abstract EN

We obtain the numerical solution of a Boussinesq system for two-way propagation of nonlinear dispersive waves by using the meshless method, based on collocation with radial basis functions.

The system of nonlinear partial differential equation is discretized in space by approximating the solution using radial basis functions.

The discretization leads to a system of coupled nonlinear ordinary differential equations.

The equations are then solved by using the fourth-order Runge-Kutta method.

A stability analysis is provided and then the accuracy of method is tested by comparing it with the exact solitary solutions of the Boussinesq system.

In addition, the conserved quantities are calculated numerically and compared to an exact solution.

The numerical results show excellent agreement with the analytical solution and the calculated conserved quantities.