An efficient collocation algorithm with SSP-RK43 to solve
Rosenau-KdV-RLW equation
Abstract
In this study, coupling of Rosenau-KdV and Rosenau-RLW equation is
solved by a collocation technique based on quintic B-spline as basis
functions which models the motion of shallow water waves. For this,
spatial domain is discretized using quintic B-splines, which leads to a
system of first order ordinary differential equations. Strong stability
preserving Runge-Kutta method of fourth stage, third-order (SSP-RK43) is
applied to solve the obtained system. All the calculations are performed
without any linearization or transformation. Couple of test problems are
solved to show the efficacy and accuracy of the technique by calculating
L2 and L(infinity) error norms as well as discrete energy (E) and mass
(Q) conservation properties. Stability analysis of the technique is
performed using the concept of Jacobian matrix along with eigenvalues
and is shown to be stable.