Question: The steady temperature distribution of a square plate of thickness S in an ambient at 0 °C and with side boundary temperatures of 0°C and 100 °C is desired using a finite-difference formulation and an iteration solution (Fig.). Employ the largest possible network, but do not lump the whole cross section. Data: L = 50 mm, δ = 3 mm, k = 15 W/m·K, h1 = 200 W/m2·K, h2 = 40 W/m2.K.
