泡沫铝翅片传热和流动特性的实验研究  

AN EXPERIMENTAL INVESTIGATION ON THE FLOW AND HEAT TRANSFER CHARACTERISTICS FOR ALUMINUM FOAM

作　　者：邱海平[1] 施明恒[1] 

机构地区：[1]东南大学动力系

出　　处：《工程热物理学报》2005年第6期1016-1018,共3页Journal of Engineering Thermophysics

基　　金：高校博士学科点基金资助(No.20040286029)

摘　　要：对泡沫铝翅片传热和流动特性进行了实验研究,泡沫铝的空隙率为0.90,孔密度(PPI)分别为10,20,40。实验结果表明,孔密度较大时,传热系数也较大,但流动阻力系数也明显升高。通过引入无因次变量Dα,得到了泡沫铝翅片的流动阻力系数和传热的初步准则关联式。An experimental investigation on the flow and heat transfer characteristics for aluminum foams with various pore density has been performed. Experimental results indicate that the heat transfer coefficient is much higher at the higher pore density while the friction factor increases significantly. The correlations for the heat transfer coefficient and the friction factor are obtained by using the non-dimensional parameter Da.

关 键 词：泡沫铝 多孔介质 传热 实验研究 

分 类 号：TK124[动力工程及工程热物理—工程热物理]