Using Exponential Finite Difference Method for Solve Kuramoto-Sivashinsky Equation with Numerical Stability Analysis

Al-Rozbayani, Abdulghafor M.; Azzo, Shrooq M.

doi:10.33899/csmj.2013.163562

	Using Exponential Finite Difference Method for Solve Kuramoto-Sivashinsky Equation with Numerical Stability Analysis
AL-Rafidain Journal of Computer Sciences and Mathematics
Article 20, Volume 10, Issue 4, 2013, Pages 147-165 PDF (859.68 K)
Document Type: Review Paper
DOI: 10.33899/csmj.2013.163562
Authors
Abdulghafor M. Al-Rozbayani; Shrooq M. Azzo
Department of Mathematics, College of Computer Sciences and Mathematics, University of Mosul, Iraq
Abstract
In this paper we solved the Kuramoto-Sivashinsky Equation numerically by finite-difference methods, using two different schemes which are the Fully Implicit scheme and Exponential finite difference scheme, because of the existence of the fourth derivative in the equation we suggested a treatment for the numerical solution of the two previous scheme by parting the mesh grid into five regions, the first region represents the first boundary condition, the second at the grid point x1, while the third represents the grid points x₂,x₃,…x_n-₂, the fourth represents the grid point x_n-₁and the fifth is the second boundary condition. We also, studied the numerical stability by Fourier (Von-Neumann) method for the two scheme which used in the solution on all mesh points to ensure the stability of the point which had been treated in the suggested style, we using two interval with two initial condition and the numerical results obtained by using these schemes are compare with Exact Solution of Equation Excellent approximate is found between the Exact Solution and numerical Solutions of these methods.
Keywords
Kuramoto-Sivashinsky Equation; Fully Implicit scheme; Exponential finite difference scheme; Von-Neumann Method

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