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Simultaneous Measurement of Fluid Velocity and Particle Velocity in a Particle-Containing Fluid Flow  

Jin Dong-Xu (Thermal/Flow Control Research Center, Korea Institute of Science & Technology(KIST))
Lee Dae-Young (Thermal/Flow Control Research Center, Korea Institute of Science & Technology(KIST))
Lee Yoon-Pyo (Thermal/Flow Control Research Center, Korea Institute of Science & Technology(KIST))
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.17, no.4, 2005 , pp. 355-363 More about this Journal
Abstract
A novel method for simultaneously measuring the fluid velocity and the large particle velocity in a particle-containing fluid flow is developed in this study. In this method, the fluid velocity and the large particle velocity are measured by PIV and PTV, respectively. The PIV and PTV images are obtained from the same flow images. Since a PIV result represents the average displacement of all particles in an interrogation area, it will include an error caused by the relative displacement between the large particles and the fluid. In order to reduce the false influence of large particles on the PIV calculation, the mean brightness of small PIV particle images is substituted to the locations of large particles in the PIV images. The simulation results showed that the new method significantly reduces the PIV error caused by the large particles even at the case where the large particles occupy area fraction as large as $20\%$ of the full image.
Keywords
Fluid; Large particle; PIV; PTV; Simultaneous measurement;
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  • Reference
1 Gonzalez, R. C. and Woods, R. E., 2002, Digital Image Processing, 2nd ed., Prentice- Hall, New Jersey
2 Westerweel, J., 1997, Fundamentals of digital particle image velocimetry, Measurement Science and Technology, Vol. 8, pp. 1379-1392   DOI   ScienceOn
3 Okamoto, K., Nishio, S., Saga, T. and Kobayashi, T., 2000, Standard images for particle-image velocirnetry, Measurement Science and Technology, Vol. 11, pp.685-691   DOI   ScienceOn
4 Choi, H. M, Kurihara, T., Monji, H. and Matsui, G., 2002, Measurement of particle/ bubble motion and turbulence around it by hybrid PIV, Flow Measurement and Instrumentation, Vol. 12, pp. 421-428   DOI   ScienceOn
5 Ohmi, K. and Li, H. Y., 2000, Particle-tracking velocimetry with new algorithms, Measurement Science and Technology, Vol. 11, pp.603-616   DOI   ScienceOn
6 Wereley, S. T., Akonur, A. and Lueptow, R. M., 2002, Particle-fluid velocities and fouling in rotating filtration of a suspension, Journal of Membrane Science, Vol. 209, pp. 469-484   DOI   ScienceOn