| 应用共轴型二维激光测速系统测量孔板管流的湍流特性 |
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| 引用本文： | 沈熊,严幼幼,高建生,丁则裕. 应用共轴型二维激光测速系统测量孔板管流的湍流特性[J]. 力学学报, 1991, 23(2): 225-231. DOI: 10.6052/0459-1879-1991-2-1995-830 |
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| 作者姓名： | 沈熊 严幼幼 高建生 丁则裕 |
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| 作者单位： | 清华大学工程力学系 |
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| 摘 要： | 本文发表了一种共轴型二维激光测速系统,可同时测量由三束入射光组成的平面内的二维速度分量。讨论了主要的测量误差并提出了一种修正共轴分量角度偏差的方法。应用该系统详细测量了单孔板和双孔板管流的轴向和径向平均速度。湍流度和雷诺切应力分布,表明来流条件对孔板下游的湍流特性有强烈影响。
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| 关 键 词： | 激光测速系统 湍流 测量 孔板流动 |
MEASUREMENTS OF TURBULENT ORIFICE FLOW USING AN ON-AXIS 2-D LDV SYSTEM |
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| Shen Xiong Yan Youyou Gao Jiansheng Ding Zeyu. MEASUREMENTS OF TURBULENT ORIFICE FLOW USING AN ON-AXIS 2-D LDV SYSTEM[J]. chinese journal of theoretical and applied mechanics, 1991, 23(2): 225-231. DOI: 10.6052/0459-1879-1991-2-1995-830 |
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| Authors: | Shen Xiong Yan Youyou Gao Jiansheng Ding Zeyu |
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| Affiliation: | Tsinghua University |
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| Abstract: | An on-axis 2-D LDV system for measuring two velocity components in the plane formed by three incident beams was presented. The measuring errors in on-axis direction were discussed and a method for correcting the angular deviation was suggested. Detailed measurements were made in a pipe flow for single and double orifice cases by using: this system. Mean velocity, turbulent intensity and Reynolds shear stress distributions in axial and radial directions were measured at the Reynolds number of 1.4×105.Compari... |
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| Keywords: | laser Doppler velocimetry turbulence measurement orifice flow |
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