The estimation of the length constant of a long cooling fin by variational iteration method

– The purpose of this paper is to validate the variational iteration method (VIM) is suitable for various nonlinear equations.

– The He’s VIM is applied to solve nonlinear equation which is derived from actual engineering problem. The result was compared with other method.

– The result obtained from VIM shows good agreement with Xu’s result which provide a solid evidence that VIM is convenient and effective for solving nonlinear equation in the engineering.

– The VIM can be extended to many academic and engineering fields for nonlinear equations solving.