| 极低湍流度下翼型边界层及近场尾流的雷诺应力测量试验研究 |
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| 引用本文： | 何克敏,郭渠渝,白存儒,屠兴.极低湍流度下翼型边界层及近场尾流的雷诺应力测量试验研究[J].实验流体力学,1996(4). |
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| 作者姓名： | 何克敏 郭渠渝 白存儒 屠兴 |
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| 作者单位： | 西北工业大学 |
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| 摘 要： | 在西北工业大学低湍流度风洞中，用热线风速仪在对称翼型边界层及近场尾流中，于２０多处剖面上移测速度型、湍流强度、雷诺正应力及切应力等湍流参量。着重讨论了各雷诺应力分量的分布。结果表明，在边界屋和尾流宽度方向及流动方向上均有明显的规律性，其有关特征值明显低于常规风洞湍流度下的结果。
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| 关 键 词： | 湍流度，翼型，边界层，尾流，雷诺应力 |
THE EXPERIMENTAL INVESTIGATION OF REYNOLDS STRESS IN THE BOUNDARY LAYER AND NEAR WAKE OF AN AIRFOIL AT VERY LOW TURBULENCE LEVEL |
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| He Kemin,Guo Quyu,Bai Cunru,Tu Xing.THE EXPERIMENTAL INVESTIGATION OF REYNOLDS STRESS IN THE BOUNDARY LAYER AND NEAR WAKE OF AN AIRFOIL AT VERY LOW TURBULENCE LEVEL[J].Experiments and Measur in Fluid Mechanics,1996(4). |
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| Authors: | He Kemin Guo Quyu Bai Cunru Tu Xing |
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| Institution: | Northwesters Polytechnical University |
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| Abstract: | This paper describes the velocity profile, turbulence intensity and Reynolds stress in the boundary layer and near wake of an airfoil measured in the low turbulence wind tunnel of NPU using a DISA hot wire anemometer. The distribution of Reynolds stress was discussed. The results had shown, the Renolds stress distribution in the flow direction and in the width of the boundary layer and wake has regular forms obviously.When Compared with the results obtained in general wind tunnels, the value of the corresponding quantity were lower. |
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| Keywords: | turbulence airfoil boundary layer wake Reynoldsstress |
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