| 封严篦齿腔内流动及旋涡分布和顶板换热特性的实验研究 |
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| 引用本文： | 黄晓光,吴丁毅.封严篦齿腔内流动及旋涡分布和顶板换热特性的实验研究[J].实验流体力学,2000,14(4):20-25. |
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| 作者姓名： | 黄晓光 吴丁毅 |
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| 作者单位： | 1. 上海交通大学动力机械与能源工程学院 上海 200030
2. 西北工业大学航空动力与热力工程系，陕西 西安 710072 |
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| 摘 要： | 自行设计了吸气式篦齿换热风洞并对篦齿腔内部旋涡分布及流场和篦齿顶板换热特性进行了详细的研究。测出了在不同雷诺数和齿隙比篦齿腔中旋涡分布和顶板换热规律。从机理上分析了雷诺数和齿隙比对篦齿腔内流动旋涡分布及顶板表面局部换热规律的影响。
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| 关 键 词： | 篦齿密封 涡 壁面效应 换热系数 雷诺数 |
| 文章编号： | 1007-3124(2000)04-0020-06 |
| 修稿时间： | 1999年7月5日 |
The investigation of flow field and heat transfer in cavity of labyrinth seal |
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| HUANG Xiao-guang,WU Ding-yi.The investigation of flow field and heat transfer in cavity of labyrinth seal[J].Experiments and Measur in Fluid Mechanics,2000,14(4):20-25. |
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| Authors: | HUANG Xiao-guang WU Ding-yi |
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| Abstract: | We built a labyrinth heat transfer wind tunnel.Detailed experimental results on the flow field reveal the velocities and vortices distribution in the cavity of labyrinth seal and local heat transfer coefficient distribution on the roof of l abyrinth. Analyzing the results obtained at different Reynolds number and T/C , We found the influence on the velocity and pressure distribution in cavity o f labyrinth and the influence of different Reynolds number and T/C on the hea t transfer coefficient on the roof of labyrinth seal. |
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| Keywords: | labyrinth seal vortex wall effect heat transfer coefficient Reynolds number |
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