With similarity considerations on governing equations, the heat transfer of mixed convection can be predicted to be controlled by Archimedes number and geometric factors.
通过控制方程的相似律分析，可预言混合对流传热由阿基米德数和几何因子控制。
The results show that the performance of heat transfer in lower re number region is poly tropic, and that in higher re region is similar to conventional channel.
结果表明，窄隙流道内的换热在低雷诺数区表现出与普通流道不同的多变特性，而在高雷诺数区与普通流道相近。
It is generally obtained by the experimental method, namely using Newton cooling formula to get tube outside heat transfer coefficient, then get the tube outside Nusselt number.
一般通过实验的方法求得，即运用牛顿冷却公式求出管外对流换热系数，进而求得管外努谢尔数。
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