包覆金属泡沫管束流动与传热特性实验研究  

Experimental Investigation on Fluid Flow and Heat-Transfer Properties of Metallic Foam Tube-Bundle

作　　者：陈康[1] 郭烈锦[1] 赵亮[1] 刘威志[1] 

机构地区：[1]西安交通大学动力工程多相流国家重点实验室,西安710049

出　　处：《工程热物理学报》2016年第4期770-774,共5页Journal of Engineering Thermophysics

基　　金：中海油国家科技重大专项(No.2016ZX05028004-002);国家自然科学基金重大科研仪器研制项目(No.51527808)

摘　　要：本文采用实验研究的方法得到了光滑圆管、管外包覆镍金属泡沫圆管在紧凑型错列管束中流动和换热情况,分析了金属泡沫对流动和传热的影响,发现管外包覆一定厚度的镍金属泡沫层可以明显增强圆管管束的换热性能,以较大的沿程流动阻力损失为代价,包覆镍金属泡沫管束的传热性能得到2～3倍的提高。An experimental investigation was conducted to reveal the fluid flow and neat transter performances of the bare and metallic foam tube bundles.And the effects of micro-structure on the performance of tube bundles was analyzed,it can be observed that the performance of tune-bundle was improved significantly using the metallic foam covered tubes at the expense of a higher pressure drop,and the experimenal results showed that the heat-transfer rate had a 2～3 times increase using the nickel-foam.

关 键 词：金属泡沫 圆管管束 流动 传热 

分 类 号：O359[理学—流体力学]