Journal
APPLIED MATHEMATICS LETTERS
Volume 22, Issue 2, Pages 245-251Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.aml.2008.03.019
Keywords
Optimal Homotopy Asymptotic Method (OHAM); Fourth-grade fluid; Porous plate
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A new analytic approximate technique for addressing nonlinear problems, namely the Optimal Homotopy Asymptotic Method (OHAM), is proposed and used in an application to the steady flow of a fourth-grade fluid. This approach does not depend upon any small/large parameters. This method provides us with a convenient way to control the convergence of approximation series and adjust convergence regions when necessary. The series solution is developed and the recurrence relations are given explicitly. The results reveal that the proposed method is effective and easy to use. (C) 2008 Elsevier Ltd. All rights reserved.
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