| 人工扰动信号在湍流边界层中的衰减 |
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| 引用本文： | 王立坤,舒玮.人工扰动信号在湍流边界层中的衰减[J].实验力学,1999,14(4):432-436. |
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| 作者姓名： | 王立坤 舒玮 |
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| 作者单位： | 天津大学!天津，300072，天津大学!天津，300072 |
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| 基金项目： | 教育部高等学校博士点基金!编号96005613 |
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| 摘 要： | 将人工扰动引入湍流流场，使用功率谱分析方法，研究边界层外层的较大频率范围内的人工扰动信号沿流向和法向的衰减，获得了人工扰动在湍流边界层中的衰减趋势．
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| 关 键 词： | 湍流边界层 人工扰动 衰减 |
The Degeneration of Artifical Disturbing Signal in Turbulent Boundary Layer |
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| WANG Likun,SHU Wei.The Degeneration of Artifical Disturbing Signal in Turbulent Boundary Layer[J].Journal of Experimental Mechanics,1999,14(4):432-436. |
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| Authors: | WANG Likun SHU Wei |
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| Abstract: | Artificial disturbance is introduced to an experimental wall turbulent field. The degeneration of the artificial disturbing signal in stream and normal directions of the layer is studied by using power spectrum analysis. The degeneration trend of artificial disturbance in turbulent boundary layer is obtained for different disturbing frequencies. |
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| Keywords: | turbulent boundary artificial disturbance degeneration |
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