According to their model, the coupled core-mantle thermal evolution can be divided into three stages : ( 1 ) the growth of the internally convecting thermal boundary layer, ( 2 ) the superplume formation, and ( 3 ) the spread and decay of the superplume.
12.
The Stanton number arises in the consideration of the geometric similarity of the momentum boundary layer and the thermal boundary layer, where it can be used to express a relationship between the shear force at the wall ( due to viscous drag ) and the total heat transfer at the wall ( due to thermal diffusivity ).
