The present paper includes analytical investigation of the validity of total resistance heat dissipation model using variable heat transfer coefficient for annular fins constant thickness. The model is given as:
Furthermore, a finite difference method using SOR technique is devised to serve the two purposes of verifying the two dimensional heat transfer model and to cover a wide range of fin parameters and heat transfer coefficient models. The results were in agreement and proved the validity of the suggestion model under the both the constant and variable heat transfer coefficient assumptions.
Key words: Total resistance, Variable heat transfer coefficient, Heat transfer, Annular fins