窄环隙内强迫对流换热特性的实验研究  

Experimental study on heat transfer characteristics with forced convection in narrow annulus

作　　者：路广遥[1] 王经[1] 孙中宁 

机构地区：[1]上海交通大学机械与动力工程学院,上海200030 [2]哈尔滨工程大学动力与核能工程学院,黑龙江哈尔滨150001

出　　处：《核科学与工程》2005年第2期159-162,共4页Nuclear Science and Engineering

摘　　要：对窄环隙内强迫对流换热特性进行了实验研究。实验结果表明,在紊流区窄环隙可以强化换热;当Re<150时,发生传热恶化。对窄环隙内加热流体和冷却流体强迫对流换热特性进行分析,可以为窄环隙内对流换热的进一步研究提供基础。Experiments are carried out to study the convective heat transfer characteristics in narrow annulus. The results show that the narrow annulus can enhance heat transfer in the turbulent flow area. When the Reynolds number is lower than 150, the heat transfer deteriorates. The analyses of the heat transfer characteristics for the heating liquid and cooling liquid flowing through annulus are made to provide the basis for further studies.

关 键 词：窄环隙 对流 强化换热 

分 类 号：TB126[理学—工程力学]