| 二维自由剪切湍流的实验结果及其与理论计算的比较 |
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| 引用本文： | 周培源 林建忠. 二维自由剪切湍流的实验结果及其与理论计算的比较[J]. 水动力学研究与进展(A辑), 1991, 6(2): 1-9 |
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| 作者姓名： | 周培源 林建忠 |
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| 作者单位： | 北京大学力学系(周培源，林建忠)，北京大学力学系(魏中磊) |
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| 摘 要： | 本文用热线风速仪和数据采样技术,对二维湍流混合层、湍尾流和湍射流自模拟区内的平均速度、湍流强度、雷诺应力和脉动速度的高阶关联进行了测量,所得结果与不可压缩流体剪切湍流理论的计算结果进行了比较,两者吻合得较好。
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| 关 键 词： | 二维 自由剪切 湍流 热线测量 |
The Experimental Results of 2-D Free Shear Turbulent Flows and the Comparison with the Theoretical Computation |
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| Zhou Pei-yuan Lin Jian-zhong Wei Zhong-lei. The Experimental Results of 2-D Free Shear Turbulent Flows and the Comparison with the Theoretical Computation[J]. Chinese Journal of Hydrodynamics, 1991, 6(2): 1-9 |
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| Authors: | Zhou Pei-yuan Lin Jian-zhong Wei Zhong-lei |
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| Abstract: | An extensive set of measurements in 2-D turbulent mixing layer, wake and jet flow by the hotwire technique and data sampling are present. The measured quantities, i. e. the mean velocity, the turbulence intensity, the Reynolds stress and higher-order correlations of the fluctuating velocity in the self-preserving region of the above free shear flows are compared with the computational results based on Zhou's theory for the shear turbulence of incompressible fluid. The experimental and computational results are in a good agreement. |
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| Keywords: | 2-D free shear turbulent flows higher-order correlations of the fluctuating velocity hot-wire technique. |
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