Abstract
In this paper, a new approach is presented for solving natural convection heat transfer equations embedded in porous medium. These equations are non-linear, three-point boundary value equations on semi-infinite interval. Our approach is based upon the rational Bernoulli wavelets; these wavelets are first introduced. Then the derivative operational matrix of rational Bernoulli wavelets is given. This matrix is utilized to reduce the solution of the under study problem to a system of algebraic equations. Error estimation of our approximation is provided. We also present the comparison of this work with Runge–Kutta method and other methods, moreover, in the figure of the relative errors, we show that our results are accurate and applicable.
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