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A New Method for Solving Singularly Perturbed Boundary Value Problems |
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PP: 927-938 |
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Author(s) |
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Essam R. El-Zahar,
Saber M. M. EL-Kabeir,
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Abstract |
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| In this paper, a new initial value method for solving a class of nonlinear singularly perturbed boundary value problems
with a boundary layer at one end is proposed. The method is designed for the practicing engineer or applied mathematician who needs
a practical tool for these problems (easy to use, modest problem preparation and ready computer implementation). Using singular
perturbation analysis the method is distinguished by the following fact: the original problem is replaced by a pair of first order initial
value problems; namely, a reduced problem and a boundary layer correction problem. These initial value problems are solved using
classical fourth order Runge–Kutta method. Numerical examples are given to illustrate the method. It is observed that the present
method approximates the exact solution very well. |
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