摘要
基于航天器高热流密度散热的需求,综述了国内外近年单孔和阵列受限式浸没射流技术的研究进展。阐明了射流结构和试验工况等因素对单相/两相换热及流动性能的影响,列出了射流冷却实验研究的条件和结果,分析了换热机理和影响规律。给出了单/多微小通道、冲击表面处理等射流冷却强化结构的研究结果,概括了微通道、肋片和微纳涂层等表面结构对射流冲击换热的原理和强化效果。
The experimental and numerical researches on single-phase and two-phase confined impinging jet were reviewed for the requirement of spacecraft high-heat-flux removal in this paper.The effects of jet structure and experiment conditions on heat transfer and flow characteristics were presented.The test results of jet impingement were listed.The heat transfer mechanism and influence law were analyzed.The research results of the different surface structures applied to enhance heat transfer,which were single and multiply microchannel and surface treatment,were discussed. The mechanisms and strengthening effects of the surface structures such as microchannel,fin and micro/nano-coating were also given out.
出处
《上海航天》
2016年第2期106-112,共7页
Aerospace Shanghai
基金
863重大专项课题(2013AA8073034)
星载高热流密度与先进热辐射器技术专项资金资助(51320040101)
关键词
航天器
高热流密度散热
受限式浸没射流
阵列射流
强化换热
表面结构
微通道
肋片
微纳涂层
Spacecraft
High-heat-flux removal
Confined jet impingement
Jet array
Heat transfer enhancement
Surface structures
Microchannel
Fin
Micro/nano-coating
