Analytical Solution of Nonlinear Boundary Value Problem for Fin Efficiency of Convective Straight Fins with Temperature-Dependent Thermal Conductivity

Figure 2

Dimensionless temperature 𝜃 versus dimensionless coordinate 𝜉 for various values of 𝜓 when 𝛽=0  and  ℎ=−0.84. The key to the graph (solid line) represents our approximate solution presented in this work (8), and (+) represents Joneidi et al.’s [7] work (Equation (11)).