【摘要】 本文通过涡量-流函数法,对带V形隔热膜的平板型太阳能集热器二维封闭空间内自然对流进行了数值计算,定量分析了Rα、集热器倾角、V形膜开口角、H_v/H四个参数对换热的影响,为这种集热器的设计提供了依据。更多还原

【Abstract】 In this paper, two-dimensional natural convection heat transfer within a rectangular enclosure formed by a flat-plate solar collector with a Ⅴ-corrugated film has been numerically analysed using vorticity-stream function method. The parameters which govern the heat transfer rate (Ra number, tilt angle of the collector, open angle of Ⅴ-corrugated film and Hv/H) and their effects on heat transfer are presented and discussed. The results are helpful for the design study of this kind of collectors.更多还原