Seven different Aluminum fins under natural convection conditions were investigated experimentally and numerical. The first fin has a flat shape; while the second fin has a new proposed wavy shape. The rest have the same wavy shape but with different perforations distribution. Fifty 1 cm circular perforation were made on each of the five fins. Vertical cylindrical heat sink with 1000 W heater inside used. The difference in measurements between experimental and numerical study by ANSYS software was 2, 3, and 4% at a power supply of 300, 500, and 700 W respectively. Results show that the new proposed wavy configuration fin will give better heat transfer rate than the flat one with smaller space requirement. When the perforations were added to fins; better performance was obtained compared to solid fins (flat and wavy types) where a best heat transfer rate was obtained with minimum rig size, weight and cost which is the main object of most industrial applications. The effect of perforations distribution on wavy fins were also studied and the most success arrangement is indicated. Fin (5) showed more enhancement than other fin configurations.

在自然对流条件下，对七个不同的铝翅片进行了实验和数值研究。第一鳍片具有扁平形状；而第二鳍有一个新的波浪形。其余部分具有相同的波浪形状，但穿孔分布不同。在五个散热片上分别制作了五十个1厘米的圆形穿孔。使用内部带有1000 W加热器的垂直圆柱形散热器。在300、500和700 W的电源下，通过ANSYS软件进行的实验研究和数值研究之间的测量差异分别为2％，3％和4％。结果表明，与空间需求较小的扁平翅片相比，新提议的波浪形翅片将提供更好的传热速率。将穿孔加到鳍片上时；与实心散热片（扁平和波浪形）相比，可以获得更好的性能，实心散热片以最小的钻机尺寸，重量和成本获得了最佳的传热速率，这是大多数工业应用的主要目标。还研究了孔眼分布对波浪状鳍的影响，并指出了最成功的布置方法。鳍片（5）显示出比其他鳍片配置更多的增强。