Taylor-Galerkin B-Spline Finite Element Method for the One-Dimensional Advection-Diffusion Equation

The advection-diffusion equation has a long history as a benchmark for numerical methods. Taylor-Galerkin methods are used together with the type of splines known as B-splines to construct the approximation functions over the finite elements for the solution of time-dependent advection-diffusion problems. If advection dominates over diffusion, the numerical solution is difficult especially if boundary layers are to be resolved. Known test problems have been studied to demonstrate the accuracy of the method. Numerical results show the behavior of the method with emphasis on treatment of boundary conditions. Taylor-Galerkin methods have been constructed by using both linear and quadratic B-spline shape functions. Results shown by the method are found to be in good agreement with the exact solution. (C) 2009 Wiley Periodicals, Inc. Numer Methods Partial Differential Eq 26: 1206-1223, 2010