ISSN 打印: 1064-2285
ISSN 在线: 2162-6561

# 传热学

DOI: 10.1615/HeatTransRes.v41.i2.40
pages 155-165

## Highly Nonlinear Temperature-Dependent Fin Analysis by Variational Iteration Method

Department of Mechanical Engineering, Babol University of Technology, Babol, Iran
Division of Thermal Energy, Technical University of Denmark, Lyngby, Denmark
Amin Barari
Aalborg University
Ganji Domairry
Department of Mechanical Engineering, Babol University of Technology, Babol, Iran

### ABSTRACT

In this research, the variational iteration method as an approximate analytical method is utilized to overcome some inherent limitations arising as uncontrollability to the nonzero endpoint boundary conditions and is used to solve some examples in the field of heat transfer. The available exact solutions for the linear equations and the numerical solutions for the nonlinear ones are good bases to demonstrate the accuracy and efficiency of the proposed method. With the help of the method one can simply analyze the thermal characteristics of a straight rectangular fin for all possible types of heat transfer because of the explicit outputs as the successive approximate solutions.

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