Mechanism and control of convective heat transfer - Coordination of velocity and heat flow fields

A second look has been given at the mechanism of convective heat transfer b ased on the analogy between convection and conduction with heat sources. Th e strength of convective heat transfer depends not only on the fluid veloci ty and fluid properties, but also on the coordination of fluid velocity and heat flow fields. Hence, based on the included angle of velocity and tempe rature gradient vectors, the presence of fluid motion may enhance or reduce heat transfer, With this concept, the known heat transfer phenomena may be understood in a deeper way, More important is that some novel approaches o f heat transfer control can be developed.