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| CCD互相关粒子图像测速及其在对抗流流场测量中的应用 | |
| 引用本文： | 郑日恒,Bray K N C,Rogg B,Lecordier B.CCD互相关粒子图像测速及其在对抗流流场测量中的应用[J].推进技术,2000,21(6):83-88. |
| 作者姓名： | 郑日恒 Bray K N C Rogg B Lecordier B |
| 作者单位： | 1. 英国剑桥大学,工程系,剑桥,CB2 IPZ,英国 2. 鲁尔大学,流体热力学研究所,波洪,D-44780,德国 3. CORIA,Rouen 大学,Mont-Saint-Aignan,法国 |
| 摘 要： | 在常规自相关粒子图像测速（ＰＩＶ）系统的基础上，发展了一个采用ＣＣＤ像机的互相关粒子图像测速系统。用这一新系统测量了对抗流流场的结果表明，这一技术克服了自相关粒子图像测速技术在测量具有滞止点的流场中的困难。实验说明，与自相关粒子图像测速技术相比，这一技术更快捷有效。 |
| 关 键 词： | 粒子速度成像 CCD像机 对抗流流场测量 |
CCD cross-correlation particle image velocimetry and its application to counterflow flowfield measurements |
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| Zheng RiHeng,Bray K N C,Rogg B and Lecordier B.CCD cross-correlation particle image velocimetry and its application to counterflow flowfield measurements[J].Journal of Propulsion Technology,2000,21(6):83-88. | |
| Authors: | Zheng RiHeng Bray K N C Rogg B and Lecordier B |
| Institution: | Dept of Engineering,Univ of Cambridge,CB2 IPZ,U K;Dept of Engineering,Univ of Cambridge,CB2 IPZ,U K;Inst für Thermo-Fluidynamik,Ruhr-Universit*]t,Bochum,D-44780,Germany;CORIA,Univ de Rouen,Mont-Saint-Aignan,France |
| Abstract: | A cross-correlation Particle Image Velocimetry(PIV)system with a CCD camera was developed,based on a typical conventional auto-correlation Particle Image Velocimetry system.The results obtained by using this PIV technique for the measurement of counterflow velocity field show that the difficulty arisen from the auto-correlation PIV for the measurements of velocity field including a stagnation point has been overcome with this approach.In addition,compared with auto-correlation PIV,the experiments have demonstrated that this approach is more efficient. |
| Keywords: | Particleimage velocimetry Counterflow Cross-correlation Autocorrelation Velocity distribution Flow measurement |
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