1.序言平行错口的锯齿形散热片(Offset Strip Fin,简称OSF),如图1所示,是采用散热片的小片与气流方向平行交叉错开布置的结构。这种散热片被广泛用于飞机板翅式紧凑热交换器上。因此,人们正在大力开展对其传热及压力损失特性方面的研究工作。尽管散热片形状很简单,但对于几何尺寸不同的散热片性能,可以用于最佳设计的研究成果几乎没 1. Introduction Parallel Offset Strip Fin (OSF), as shown in FIG. 1, is a structure in which the small pieces of the heat sink are arranged in a staggered manner and crosswise to the air flow direction. This heat sink is widely used in aircraft wing-plate compact heat exchangers. Therefore, people are vigorously carrying out research on their heat transfer and pressure loss characteristics. Although the shape of the heatsink is simple, the results that can be applied to the best design for heatsink performance with different geometries are almost no