Mechanism and control of convective heat transfer |
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Authors: | Zengyuan Guo |
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Institution: | (1) Department of Engineering Mechanics, Tsinghua University, 100084 Beijing, China |
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Abstract: | A second look has been given at the mechanism of convective heat transfer based on the analogy between convection and conduction
with heat sources. The strength of convective heat transfer depends not only on the fluid velocity and fluid properties, but
also on the coordination of fluid velocity and heat flow fields. Hence, based on the included angle of velocity and temperature
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 of heat transfer control can be
developed. |
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Keywords: | convective heat transfer coordination heat transfer enhancement |
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