A Numerical Study on Two-Dimensional Fins with Non-Constant Heat Flux

In this study, the COMSOL Multiphysics mathematics toolbox was employed in order to analyze the steady state heat transfer of extended surfaces. The simulation results for a two-dimensional problem were validated with the Fourier series analytical solution derived for the case in the literature. The results of COMSOL were shown to have a good agreement with analytical Fourier series approach. Moreover, using the simulation model, a comparison was made between the fins with a convective and isolated tip. The results demonstrated that the fin with a convective tip has about 5% higher rate of heat transfer