| 平面撞击流振荡特性 |
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| 引用本文： | 孙志刚,李伟锋,刘海峰,于遵宏.平面撞击流振荡特性[J].化工学报,2009,60(2):338-344. |
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| 作者姓名： | 孙志刚 李伟锋 刘海峰 于遵宏 |
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| 作者单位： | 华东理工大学煤气化教育部重点实验室,上海,200237;华东理工大学煤气化教育部重点实验室,上海,200237;华东理工大学煤气化教育部重点实验室,上海,200237;华东理工大学煤气化教育部重点实验室,上海,200237 |
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| 基金项目： | 国家重点基础研究发展计划项目(2004CB217703);;教育部长江学者与创新团队发展计划项目(IRT0620)~~ |
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| 摘 要： | 对两对置平面喷嘴形成的撞击流的振荡特性进行了实验研究。采用高速摄像仪、烟线流场显示和热线测量的方法，研究了不同喷嘴间距、不同喷嘴出口气速下平面喷嘴撞击流的振荡行为。研究结果表明，平面撞击流的振荡特性主要有流向拟周期振荡和偏斜振荡两种，当L<5H时主要为流向拟周期振荡模式，当L>5H时主要为偏斜振荡模式。
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| 关 键 词： | 平面喷嘴 振荡特性 撞击流 烟线法 流场显示 |
| 收稿时间： | 2008-7-14 |
| 修稿时间： | 2008-11-11
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Oscillation characteristics of two planar opposed jets |
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| SUN Zhigang,LI Weifeng,LIU Haifeng,YU Zunhong.Oscillation characteristics of two planar opposed jets[J].Journal of Chemical Industry and Engineering(China),2009,60(2):338-344. |
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| Authors: | SUN Zhigang LI Weifeng LIU Haifeng YU Zunhong |
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| Affiliation: | Key Laboratory of Coal Gasification;Ministry of Education;East China University ofScience and Technology;Shanghai 200237;China |
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| Abstract: | The oscillation characteristics of two planar opposed jets were studied by using high-speed camera,smoke wire visualization and hot-wire anemometry(HWA).The oscillation periods of two planar opposed jets at different nozzle separations and exit nozzle velocities were studied.The results showed two models of instabilities:streamwise quasi-periodic oscillation model and deflection oscillation model.The oscillation model was mainly streamwise quasi-periodic oscillation model at L<5H(where L was the nozzle sepa... |
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| Keywords: | planar nozzles oscillation characteristic opposed jets smoke wire technique flow visualization |
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