【摘要】 研究了在高壁温条件下，空气为自然对流时，水平基面上的竖直矩形散热片组的传热性能，探讨了散热片的几何参数对流动和传热的影响。通过因次分析的方法，建立了以散热片间距为特征尺寸的自然对流传热准数关系式：Ｎｕ＝０１３１４（Ｇｒ’ｓＰｒ）０３７更多还原

【Abstract】 The heat transfer performance of an array of vertical rectangular fins perpendicularly upwards from a high temperature horizontal base was studied under the condition of natural convection The effects of fin geometrical size on flow and on heat transfer were discussed by means of analyzing the experimental results In the light of the physical characteristic of the heat transfer process of the fin array ,and according to the method of the dimensional analysis, a non-dimensional equation of calculating heat transfer coefficient of fins was obtained by using fin spacing as feature size:Nu=01314(GrsPr)037更多还原