Two Different Methods for Numerical Solution of the Modified Burgers’ Equation

摘要

A numerical solution of the modified Burgers’ equation (MBE) is obtained byusing quartic B-spline subdomain finite element method (SFEM) over which the nonlinear term is locally linearized and using quartic B-spline differential quadrature (QBDQM) method. The accuracy and efficiency of the methods are discussed bycomputingL2andL∞error norms. Comparisons are made with those of some earlier papers. The obtained numerical results show that the methods are effective numerical schemes to solve the MBE. A linear stability analysis, based on the von Neumann scheme, shows the SFEM is unconditionally stable. A rate of convergence analysisis also given for the DQM.