| 轴向切向进风强旋气粒流动的PDPA研究 |
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| 引用本文： | 陈涛,罗纲.轴向切向进风强旋气粒流动的PDPA研究[J].燃烧科学与技术,1997,3(4):340-343. |
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| 作者姓名： | 陈涛 罗纲 |
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| 作者单位： | 清华大学 |
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| 基金项目： | 国家攀登计划项目课题,煤的清洁燃烧国家重点实验室开放课题 |
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| 摘 要： | 本文用相位多普勒测速仪ＰＤＰＡ研究了轴向和切向同时进气、轴向供粉的旋流数为１．５的突扩强旋气粒湍流两相流动，给出了气相和颗粒相的轴向和切向时均速度场，湍流脉动场、颗粒浓度场、揭示了强旋气粒湍流两相流动的各向异性，并表明两相速度及湍流脉动间关系不同于类似流型的Ｓ＝０．４的弱旋情况。
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| 关 键 词： | 旋流，两相流，气粒 |
Experimental Studies on Strongly Swirling Turbulent Gas Particle Flows Using PDPA |
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| Chen Tao,Luo Gang,Zhou Lixing.Experimental Studies on Strongly Swirling Turbulent Gas Particle Flows Using PDPA[J].Journal of Combustion Science and Technology,1997,3(4):340-343. |
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| Authors: | Chen Tao Luo Gang Zhou Lixing |
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| Affiliation: | Tsinghua University |
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| Abstract: | Strongly swirling turbulent gas particle flows with swirl number 1.5 were studied using a phase Doppler particle anemometer(PDPA). The two phase axial and tangential time averaged and fluctuation velocity, and particle concentration were measured. The results show the anisotropy of two phase turbulence. The relation between gas and particle time averaged and fluctuation velocities for strongly swirling gas particle flows differs from that for weakly swirling gas particle flows with swirl numbers less than unity, and is dependent on the particle inlet conditions. |
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| Keywords: | Swirling flow Two phase flow Gas particle |
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