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在平翅片上开小圆孔是一种简单的强化翅片表面换热的措施。本文通过正交实验，研究了开孔大小和位置对换热性能和阻力性能的影响，得出了关联式。通过与普通平翅片管对比表明，最优穿孔型翅片管的换热系数可提高１２．５％，而阻力增加不超过７％。在同样的传热量和温差下，最优穿孔形翅片管可以节约１０％的金属耗量。数值计算表明，最优穿孔形翅片的翅片效率比普通平翅片约低２％。
Open a small hole in the flat fin is a simple way to strengthen the fin surface heat transfer. In this paper, through the orthogonal experiment, the influence of pore size and location on the heat transfer and resistance performance is studied, and the correlation is obtained. Compared with ordinary flat-finned tubes, the heat transfer coefficient of the optimized perforated finned tubes can be increased by 12.5%, while the resistance increases by no more than 7%. With the same heat transfer and temperature difference, the optimal perforated finned tube can save 10% of the metal consumption. Numerical calculation shows that the fin efficiency of the best perforated fin is about 2% lower than that of the normal flat fin.