Discuss the below:
Q: The inner surface of a plane wall is insulated while the outer surface is exposed to an airstream at T8. The wall is at a uniform temperature corresponding to that of the airstream. Suddenly, a radiation heat source is switched on applying a uniform flux q"o to the outer surface.
(a) Sketch and label, on T - x coordinates, the temperature distributions: initial, steady-state, and at two intermediate times.
(b) Sketch the heat flux at the outer surface q"x(L, t) as a function of time.
