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Zbl 1183.65098
Yun, Beong In
Intuitive approach to the approximate analytical solution for the Blasius problem. (English)
[J] Appl. Math. Comput. 215, No. 10, 3489-3494 (2010). ISSN 0096-3003

Summary: For the Blasius problem, we propose an approximate analytical solution in the form of a logarithm of the hyperbolic cosine function which satisfies the given boundary conditions and some known properties of the exact solution. Furthermore, adding some hyperbolic tangent functions to this solution, we obtain much more accurate approximate solution with the relative error less than 0.16\% over the whole region. The superiority of the proposed solutions is shown by comparison with the existing approximate analytical solution.

MSC 2000:: *65L10 Boundary value problems for ODE (numerical methods)
34B15 Nonlinear boundary value problems of ODE

Keywords: Blasius problem; analytical solution; numerical examples; approximate analytical solution; logarithm of the hyperbolic cosine function; hyperbolic tangent functions

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