Heat Transfer

Convection combines two physical processes – diffusion of heat into the fluid (much like conduction!) and advection, the motion of the fluid. This led us to consider the development of both the thermal boundary layer, in which the temperature varies from the surface to the bulk fluid temperature, and the disturbance boundary layer, in which the velocity varies from the surface to the bulk fluid velocity (the boundary layer we considered in fluid mechanics).

 

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Heat Transfer
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Explain in a few sentences how the velocity boundary layer and the advection process influence the growth of the thermal boundary layer.

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