Consider two-dimensional transient heat transfer in a L-shaped solid bar that is initially...

Consider two-dimensional transient heat transfer in a L-shaped solid bar that is initially at a uniform temperature of 140°C and whose cross section is given in the figure. The thermal conductivity and diffusivity of the body are k= 15 W/m·K and α = 3.2 × 10-6m2/s. respectively. and heat is generated in the body at a rate of The right surface of the body is insulated, and the bottom surface is maintained at a uniform temperature of 140°C at all times. At time t = 0, the entire top surface is subjected to convection with ambient air at T∞ = 25°C with a heat transfer coefficient of h = 80 W/m2·K, and the left surface is subjected to uniform heat flux at a rate of  The nodal network of the problem consists of 13 equally spaced nodes with Δx= Δy = 1.5 cm. Using the explicit method, determine the temperature at the top corner (node 3) of the body after 2, 5, and 30 min

FIGURE P5-103