| 不连续双斜向内肋管纵向涡流动显示 |
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| 引用本文： | 李晓伟,严环,孟继安,李志信,过增元.不连续双斜向内肋管纵向涡流动显示[J].工程热物理学报,2006,27(Z2):119-121. |
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| 作者姓名： | 李晓伟 严环 孟继安 李志信 过增元 |
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| 作者单位： | 清华大学航天航空学院,北京,100084 |
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| 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。
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| 关 键 词： | 纵向涡 强化换热 流动显示 |
| 文章编号： | 0253-231X(2006)Suppl.2-0119-03 |
| 修稿时间： | 2006年1月20日 |
FLOW VISUALIZATION OF THE LONGITUDINAL VORTICES IN THE DISCRETE DOUBLE INCLINED RIBS TUBE |
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| LI Xiao-Wei,YAN Huan,MENG Ji-An,LI Zhi-Xin,GUO Zeng-Yuan.FLOW VISUALIZATION OF THE LONGITUDINAL VORTICES IN THE DISCRETE DOUBLE INCLINED RIBS TUBE[J].Journal of Engineering Thermophysics,2006,27(Z2):119-121. |
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| Authors: | LI Xiao-Wei YAN Huan MENG Ji-An LI Zhi-Xin GUO Zeng-Yuan |
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| Abstract: | 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. |
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| Keywords: | longitudinal vortex heat transfer enhancement flow visualization |
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