Compared the 3-d IFT with smooth tube, the result shows that it has perfect heat transfer enhancement effect and good thermodynamic performance.
三维肋管的使用结果表明：它具有良好的强化传热效果和优良的热力性能。
In this paper, increase with Reynolds number, we first find that 3-d IFT with staggered arrangement fins and smooth tube's heat transfer characteristic curve will have a point of intersection.
本文研究还首次发现在层流区，随着雷诺数的增加，肋叉排三维内肋管和光管的换热特性曲线会出现一个交点即换热有效折点。
In our studies, three-dimensional internally finned tube (3-d IFT) is a type of new heat transfer enhanced tubes which can be used to enhance single-phase forced convective heat transfer inside tube.
本文所研究的三维内肋管就是应用于各种换热器中单相强迫对流换热的新型强化传热管。
In our studies, three-dimensional internally finned tube (3-d IFT) is a type of new heat transfer enhanced tubes which can be used to enhance single-phase forced convective heat transfer inside tube.
本文所研究的三维内肋管就是应用于各种换热器中单相强迫对流换热的新型强化传热管。
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