摘要
利用染色线流动显示方法,显示并分析了不同雷诺数下不连续双斜向内肋管管内流场。流动显示实验结果表明不连续双斜向内肋管管内存在较强的贴近壁面的纵向涡,纵向涡沿流向可持续约一倍管径距离,并且纵向涡的强度随雷诺数的增加而增强。
Longitudinal vortex flow was visualized for different Reynolds numbers using dye injection in the discrete double inclined ribs tube. The visualization showed that intensive longitudinal vortices formed right after the ribs in the discrete double inclined ribs tube. The vortices flowed downstream for nearly one tube diameter and the vortex intensity increased with increasing Reynolds number.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2006年第z2期119-121,共3页
Journal of Engineering Thermophysics
基金
国家973重点基础研究发展规划项目资助(No.G20000263)
关键词
纵向涡
强化换热
流动显示
longitudinal vortex
heat transfer enhancement
flow visualization
