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Digital Holographic Particle Tracking Velocimetry for 3-D Transient Flow around an Obstacle in a Narrow Channel |
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| Authors: | |
| Institution: | (1) Department of Applied Electronics, Tokyo University of Science, 2641 Yamazaki, Noda Chiba, 278-8510, Japan;(2) Department of Nuclear Engineering, Graduate School of Engineering, Kyoto University, Yoshida, Sakyo Kyoto, 606-8501, Japan;(3) Toyota Industries Corp., 2-1 Toyoda cyou, Kariya Aichi, 448-8671, Japan;(4) Department of Medical System Engineering, Chiba University, 1-33 Yayoi, Inage-ku Chiba, 263-8522, Japan |
| Abstract: | Digital holographic particle tracking velocimetry (PTV) is developed by single high-speed camera and single double pulsed laser with high frequency pulses. This system can directly capture 1000 hologram fringe images for 1 second through a camera computer memory. The 3-D particle location is made of the reconstruction by using a computer hologram algorithm in a personal computer. This system can successfully be applied to instantaneous 3-D velocity measurement in the water flow with a square obstacle, and can obtain an average of 300 instantaneous velocity vectors. |
| Keywords: | holography computational optics optical computer hologram particle tracking velocimetry |
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