Computationally efficient technique for solving ODE systems exhibiting initial and boundary layers (Q966311)

Summary: A computational technique based on asymptotic analysis for solving singularly perturbed ODE systems involving a small parameter \(\varepsilon \) is considered. The focus is on second-order systems, but the procedure is also applicable for first-order systems. Both initial value and boundary value problems will be solved. The application of the method is considered over the entire time domain for a wide range of \(\varepsilon \) and the resulting approximation is compared with the direct numerical solution. The convection-diffusion problem from fluid mechanics and the telegraph equation from electrical engineering are considered.