research product . 2006

Similarity analysis of a nonlinear fin equation

Pakdemirli, M; Sahin, AZ;
Open Access
  • Published: 01 Jan 2006
  • Country: Turkey
Abstract
A nonlinear fin equation in which the thermal conductivity is an arbitrary function of the temperature and the heat transfer coefficient is an arbitrary function of a spatial variable is considered. Scaling, translational and spiral group symmetries of the equations are determined. Classification of the functions for which these symmetries exist is performed. In general, no useful symmetries exist for arbitrary thermal conductivity and heat transfer coefficients. However, for some restricted forms of the functions, useful symmetries exist. A similarity transformation is used to reduce the partial differential equation to an ordinary differential equation as an e...
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