| 应用激光多普勒测速仪研究湍流有旋自由射流 |
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| 引用本文： | 肖克俭,B.Lenze,P.Habisreuther.应用激光多普勒测速仪研究湍流有旋自由射流[J].热能动力工程,1999,14(5):343-346. |
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| 作者姓名： | 肖克俭 B.Lenze P.Habisreuther |
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| 作者单位： | 1. 中国华东理工大学
2. 德国Karlsruhe大学,Engler-Bunte研究所 |
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| 摘 要： | 用激光多普勒测速仪对旋流器产生的强湍流有自由射流的速度场和湍流场进行了实验研究。实验结果表明，这种旋流器十分有利于中心回流区的形成，射流的平均速度分布沿轴向快速地衰减，有旋自由射流呈现湍流各向异性，特别是在回流区域中，本文对流场中湍流动量传递的方向进行了讨论。
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| 关 键 词： | 湍流有旋自由射流 激光多普勒测速仪 平均速度分布 湍流流场 |
Research on Turbulent and Swirling Free Jet Stream with the Help of a Laser Doppler Anemometer |
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| Xiao Kejian,B.Lenze,P.Habisreuther.Research on Turbulent and Swirling Free Jet Stream with the Help of a Laser Doppler Anemometer[J].Journal of Engineering for Thermal Energy and Power,1999,14(5):343-346. |
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| Authors: | Xiao Kejian BLenze PHabisreuther |
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| Abstract: | An experimental research is conducted of a movable block swirler produced velocity field and turbulent flow field of a strongly turbulent and swirling free jet stream. The results of study show that this type of swirler is highly conducive to the formation of a central recirculation zone. The average velocity of the jet stream assumes along the axial direction a rapid decrease with the swirling free jet exhibiting an anisotropic turbulence, especially in the recirculation zone. Also discussed in the paper is the transmission direction of the turbulent flow momentum in the flow field. |
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| Keywords: | turbulent and swirling free jet laser Doppler anemometer average velocity distribution turbulent flow field |
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