Transient free convection near the lower stagnation point of a cylindrical surface subjected to a sudden change in surface temperature

This paper presents the development of the free convection boundary-layer flow of a viscous and incompressible fluid near the lower stagnation point of a cylindrical body which is subjected to a sudden change in surface temperature. Analytical solutions for both small (unsteady) and large (steady) values of time have been obtained for the boundary-layer equations. These equations are then integrated numerically.