Analysis of Blasius Equation for Flat-plate Flow with Infinite Boundary Value

This paper applies the homotopy perturbation method (HPM) to determine the well-known Blasius equation with infinite boundary value for Flat-plate Flow. We study here the possibility of reducing the momentum and continuity equations to ordinary differential equations by a similarity transformation and write the nonlinear differential equation in the state space format, and then solve the initial value problem instead of boundary value problem. The significance of linear part is a key factor in convergence. A first seen linear part may lead to an unstable solution, therefore an extra term is added to the linear part and deduced from the nonlinear section. The results reveal that HPM is very effective, convenient, and quite accurate to both linear and nonlinear problems. It is predicted that HPM can be widely applied in engineering. Some plots and numerical results are presented to show the reliability and simplicity of the method.

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