| 超音速喷流DPIV瞬时速度场实验测量 |
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| 引用本文： | 代钦,魏润杰,黄湛,申功.超音速喷流DPIV瞬时速度场实验测量[J].北京航空航天大学学报,2001,27(6):666-669. |
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| 作者姓名： | 代钦 魏润杰 黄湛 申功 |
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| 作者单位： | 北京航空航天大学 飞行器设计与应用力学系 |
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| 基金项目： | 国家自然科学基金;CNSF19393100-01-03; |
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| 摘 要： | 介绍了采用数字式互相关粒子图像测速系统(DPIV)在测量超音速喷流实验中的应用;实验给出了设计马赫数Ma=1.5的小型拉瓦尔喷管在不同总压和反压比条件下,喷流速度场、流线、涡量分布等定量信息.实验结果显示出流场中激波前后流体速度,涡量分布的明显变化,波系的结构和不同于一维管流的流动特性.
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| 关 键 词： | 互相关 超音速射流 激波 数字式粒子图像测速 |
| 文章编号： | 1001-5965(2001)06-0666-04 |
| 收稿时间： | 2000-04-12 |
| 修稿时间： | 2000年4月12日 |
Experimental Study of Supersonic Jet Flow Using DPIV |
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| DAI Qin,WEI Run-jie,HUANG Zhan,SHEN Gong-xin.Experimental Study of Supersonic Jet Flow Using DPIV[J].Journal of Beijing University of Aeronautics and Astronautics,2001,27(6):666-669. |
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| Authors: | DAI Qin WEI Run-jie HUANG Zhan SHEN Gong-xin |
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| Institution: | Beijing University of Aeronautics and Astronautics, Dept. of Flight Vehicle Design and Applied Mechanics |
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| Abstract: | Experimental study of supersonic jet flow using digital PIV system with frame straddle CCD camera is introduced in the paper. The diameter and Mach number of the Laval nozzle exit are 13.8mm and 1.5 respectively, the vector field and wave patterns of the jet flow in different pressure ratio of the stagnation pressure with the surrounding static pressure were observed. The results show the different of flow speed and other parameter of flow field before and after the shock wave. The generation of particles and seeding method are also simply described in the paper. |
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| Keywords: | cross correlation supersonic jets shock waves digital particle image velocimetry |
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