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논문 상세정보

입자 농도가 Digital Holographic PTV 측정에 미치는 영향에 관한 연구

Effect of Particle Concentration on Digital Holographic PTV Measurement

Abstract

The digital HPTV(holographic particle tracking velocimetry) velocity field measurement system consists of four steps: recording, numerical reconstruction, particle extraction and velocity extraction. In the velocity extraction process, we improved the two frame PTV algorithm to extract 3-D displacement information of each particle located in 3D space. Because a digital CCD camera was used, some factors such as spatial resolution, numerical aperture, and particle concentration influenced on the performance of the developed digital HPTV. Especially, the particle concentration $(C_o)$ affected the reconstruction efficiency and recovery ratio in the numerical reconstruction and particle extraction procedure. In this paper, the effect of particle concentration reconstruction efficiency and recovery ratio were analyzed experimentally. Optimal particle concentration was found to be in the range of $C_o=11{\sim}17\;particles/mm^3$.

저자의 다른 논문

참고문헌 (9)

  1. Meng, H. and Hussain, F., 1995, 'A In-line Recording and Off-axis Viewing Technique for Holographic Particle Velocimetry,' Applied Optics, Vol. 34, pp. 1827-1840 
  2. Pu, Y. and Meng, H., 2000, 'An Advanced Off-axis Holographic Particle Image Velocimetry System,' Experiments in Fluids, Vol. 29, pp. 184-197 
  3. Barnhart, D. H., Adrian, R. J., Meinhart, C. D. and Papen, G. C., 1994, 'Phase-conjugate Holographic System for High-resolution Particle Image Velocimetry,' Applied of Optics, Vol. 33, pp. 7159-7169 
  4. Sheng, J. and Meng, H., 1997, 'A Genetic Algorithm Approach for 3D Velocity Field Extraction in Holographic Particle Image Velocimetry,' Experiments in Fluids, Vol. 25, pp. 461-473 
  5. Hermann, S. F. and Hinsch, K. D., 2003, 'Light-in-flight Holographic PIV or Wind-tunnel Applications: Off-site Reconstruction of Deep-volume Real Particle Images,' Proc. Int. Workshop on Holographic Metrology in Fluid Mechanics, Loughborough, UK, 28-30 May 2003 
  6. Kim, S. and Lee, S. J., 2005, 'Development of Digital Holographic PIV Technique and Its Application,' Trans. of the Korea Society of Mechanical Engineers (B), Vol. 29, No.1, pp. 123-130 
  7. Pan, G. and Meng, H., 2003, 'Digital Holography of Particle Field: Reconstruction by Use of Complex Amplitude,' Applied Optics, Vol. 42, pp. 827-833 
  8. Goodman, J. W., 1967, 'Film Grain Noise in Wavefront-reconstruction Imaging,' Journal of the Optical Society of America A, Vol. 57, pp. 493-502 
  9. Baek, S. J. and Lee, S. J., 1996, 'A New Two-frame Particle Tracking Algorithm Using Match Probability,' Experiments in Fluids, Vol. 22, pp. 23-32 

이 논문을 인용한 문헌 (4)

  1. Yang, Yan ; Kang, Bo-Seon 2008. "A Study on Determination of the Focal Plane of Particle in Digital Particle Holography" 大韓機械學會論文集. Transactions of the Korean Society of Mechanical Engineers. B. B, 32(5): 374~381 
  2. Yan, Yang ; Kang, Bo-Seon 2010. "Digital Particle Holographic System for Flow-Field Measurements" 大韓機械學會論文集. Transactions of the Korean Society of Mechanical Engineers. B. B, 34(3): 309~316 
  3. Yan, Yang ; Kang, Bo-Seon 2010. "Development of Digital Particle Holographic System for Measurements of the Characteristics of Spray Droplets" 한국액체미립화학회지 = Journal of ilass-korea, 15(2): 53~60 
  4. Roh, H.S. ; Kang, B.S. 2013. "Validation of Digital Holographic Particle Velocity Measurement System" 한국액체미립화학회지 = Journal of ilass-korea, 18(3): 119~125 

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