【摘要】 <正> 穿孔翅片是一种高效换热表面.它对于提高空气冷凝器、回热器等的性能具有实际意义。但在发表的文献中,通常把穿孔翅片的传热过程简化成单纯的对流系统,并未注重它的传热实为传导-对流系统这一基本事实,即没有研究穿孔翅片效率的变化及其影响。本文在传导-对流系统下进一步研究穿孔翅片的强化传热及流动阻力并分析比较更多还原

【Abstract】 In this paper, heat transfer augmentation and friction loss performances of perforated fin surfaces in conductive-conveetive heat transfer system were studied. The efficiencies of the fins having different hole geometry were analyzed, the performances of the heat exchangers with plate-perforated rectangular fin surfaces for a specified heat transfer rate were compared.更多还原