摘要
本文利用高速摄影仪对具有矩形毛细微槽群结构的加热表面进行喷雾冷却的传热特性进行了可视化实验研究。研究结果表明:喷雾冷却与毛细微槽结构相结合可实现高效率的相变换热过程;随着壁面温度的增加,槽表面经历了槽面完全被水浸没区、薄液膜区、部分干洞区和完全干涸区四个不同阶段;低温区主要是界面蒸发传热方式,高温区主要是沸腾换热方式。
In this paper,with high speed camera,the visualization experiments for the heat transfer characteristics of spray cooling on rectangle capillary microgroove groups surface were carried out. Results show that the highly effective phase change heat transfer process can be realized with spray cooling on capillary microgroove structures.As wall temperature increases,four distinct heat transfer regimes,which are the flooded,thin liquid film,partial dryout and dryout regimes,were identified for spray cooling on c...
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2008年第9期1548-1550,共3页
Journal of Engineering Thermophysics
基金
国家高科技研究发展计划重点资助项目
关键词
喷雾冷却
矩形毛细微槽群
薄液膜
沸腾换热
spray cooling
rectangle capillary microgroove groups
thin liquid film
boiling heat transfer
