Abstract
A stereoscopic micro-PTV (particle tracking velocimetry) technique based on 2-frame PTV using match probability was developed. This method measures not only a two-dimensional velocity field but also the out-of-plane velocity component in micro fluid flow. A validation study of SMPTV by using a simulated flow model and a real micro jet flow was performed to verify the accuracy and feasibility of the method. The effects of different kinds of microscopes and the out-of-focus effect were also investigated. All test results were compared with the SMPIV method in order to evaluate the performance. The results showed that the SMPTV method using a CMO type microscope accurately measured the micro flow with the lowest bias error and higher spatial resolution than the SMPIV method.
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This paper was recommended for publication in revised form by Associate Editor Haecheon Choi
Hyoung-Bum Kim received his M.Sc. and Ph.D. in Mechanical Engineering from POSTECH in 2000. He worked in the Department of Mechanical Engineering of the University of Colorado, Boulder till 2004 as a post-doctoral researcher and then in 2004 joined the School of Mechanical and Aerospace Engineering at Gyeongsang National University as an assistant professor. His research interests are in flow measurement and control using optical and ultrasound method, turbulent shear flow, flow instability and bio-fluid flow.
Cheong-Hwan Yu received his B.Sc. degree in Mechanical Engineering in 2007 from Gyeongsang National University and is now a master’s degree student at the Graduate School of Mechanical and Aerospace Engineering, Gyeongsang National University. His research interest is micro flow measurement and POD analysis.
Jong-Hwan Yoon received his M.Sc. and Ph.D. in Mechanical Engineering from POSTECH in 2003. He worked in Doosan Heavy Industry till 2004 and then joined the School of Automotive, Industrial and Mechanical Engineering at Daegu University. He is interested in 3-component flow measurement techniques using optical methods and flow induced noises and vibrations.
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Yu, CH., Yoon, JH. & Kim, HB. Development and validation of stereoscopic micro-PTV using match probability. J Mech Sci Technol 23, 845–855 (2009). https://doi.org/10.1007/s12206-008-1209-8
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DOI: https://doi.org/10.1007/s12206-008-1209-8