南京航空航天大学学报2017，Vol.49Issue(3)：382-388,7.DOI:10.16356/j.1005-2615.2017.03.011
机载三股流板翅式冷凝器数值计算与实验研究
Numerical Calculation and Experimental Investigation on Airborne Three-Stream Plate-Fin Condenser
摘要
Abstract
Heat transfer mechanisms of fin,plate and fluid are analyzed and the mathematical model of multi-stream plate-fin heat exchanger containing fluid phase change and cross flows between different fluids is established by finite volume method.Experimental research on heat transfer performance of airborne three-stream plate-fin condenser in four different operating conditions is conducted on the experimental evaporative cooling circulatory system.And then heat transfer characteristics between each fluid in specific operating condition are analyzed by the fluid temperature field.Besides,comparison between experimental and numerical results shows that the biggest relative error of heat exchange volume is 8.08 ％.It demonstrates that numerical calculation method can meet the requirements of engineering design.By qualitative analysis,the calculation errors are mainly influenced by flow un-uniform distribution,the calculation for latent heat and the surface convection heat transfer coefficient for phase change liquid.关键词
机载环境/三股流/板翅式换热器/微分计算模型/传热分析Key words
airborne environment/three-stream/plate-fin heat exchanger/differential simulation model/heat transfer analysis分类
航空航天引用本文复制引用
李俊,蒋彦龙,王瑜,孟二林,李翠敏..机载三股流板翅式冷凝器数值计算与实验研究[J].南京航空航天大学学报,2017,49(3):382-388,7.基金项目
江苏省自然科学基金(BK20160354)资助项目 （BK20160354）
江苏省高校自然科学研究面上(16KJB560015)资助项目. （16KJB560015）
