| 电热破膜激波管及其PLIF测量系统的研制 |
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| 引用本文： | 王高峰,林其钊,马承飙,廖钦,GUO Jun-fu,郭俊福.电热破膜激波管及其PLIF测量系统的研制[J].实验流体力学,2009,23(1). |
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| 作者姓名： | 王高峰 林其钊 马承飙 廖钦 GUO Jun-fu 郭俊福 |
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| 作者单位： | 中国科学技术大学热科学和能源工程系,合肥,230026 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，中国科学院研究生创新基金 |
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| 摘 要： | 探讨了用Nd:YAG脉冲激光器作为泵浦光源对激波管内瞬态非定常流场进行平面激光诱导荧光(Planar laser induced fluorescence,PLIF)测量的时序同步问题.由于该激光器需要预热以获得稳定的倍频输出,作者研制了低压大电流的电热破膜装置,实现对激波产生时机的控制.在大尺寸矩形截面的激波管上搭建了PLIF测量平台,并在此平台上进行了丙酮示踪流场显示和氢氧基分布测量.
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| 关 键 词： | 平面激光诱导荧光 激波管 电热破膜 流场显示 氢氧基 弱点火 |
Development of an electro-heating diaphragm rupture structure and PLIF measurement system for a shock tube |
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| WANG Gao-feng,LIN Qi-zhao,MA Cheng-biao,LIAO Qin,GUO Jun-fu.Development of an electro-heating diaphragm rupture structure and PLIF measurement system for a shock tube[J].Experiments and Measur in Fluid Mechanics,2009,23(1). |
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| Authors: | WANG Gao-feng LIN Qi-zhao MA Cheng-biao LIAO Qin GUO Jun-fu |
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| Institution: | Department of Thermal Science and Energy Engineering;Univ.of Sci.and Tech.of China;Hefei 230026;China |
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| Abstract: | Timing synchronization of Nd:YAG-laser-pumped planar laser induced fluorescence measurements for shock tube experiments is discussed.As the pump laser should warm up to acquire stable double-frequency output,an electro-heating diaphragm bursting structure to control the shock arrival time to optical window was developed.A PLIF measurement platform was established for a large-inner-dimension rectangular shock tube,in which measurements of acetone flow visualization and OH radical distribution was conducted. |
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| Keywords: | planar laser induced fluorescence shock tube electro-heating diaphragm rupture flow visualization OH radical weak ignition |
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