In this study, red, green, and blue light-emitting diodes (LED) are adopted as the light source to illuminate sequentially a two-dimensional soap film channel flow. Triple-exposure particle image is recorded on the same image frame by a 3-ccd color camera. Since the particles illuminated by the R, G, B LED will only be recorded on the R, G, B ccd-chip of the digital camera, three sequential exposure, R, G, B particle images can be obtained from separating the triple-exposure particle image. Two sequential velocity fields can be determined from the correlation analysis of the R-G and G-B sequential particle images. Time derivative of the velocity fields, and hence the evolution of the unsteady flow or the characteristics of turbulent flows can be analyzed from the two velocity fields determined. The color PIV method incorporated with the LED light has proven to be a cheap, safe, and powerful tool for the full-field flow measurements. Results of the flow past circular cylinder in the confined soap film channel flow are presented.
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ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering
July 17–20, 2006
Miami, Florida, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-4751-9
PROCEEDINGS PAPER
Development and Application of LED Illumination Color PIV Available to Purchase
Shenq-Yuh Jaw,
Shenq-Yuh Jaw
National Taiwan Ocean University, Keelung, Taiwan
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Robert R. Hwang,
Robert R. Hwang
National Taiwan Ocean University, Keelung, Taiwan
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K. L. Shyu
K. L. Shyu
National Taiwan Ocean University, Keelung, Taiwan
Search for other works by this author on:
Shenq-Yuh Jaw
National Taiwan Ocean University, Keelung, Taiwan
Robert R. Hwang
National Taiwan Ocean University, Keelung, Taiwan
K. L. Shyu
National Taiwan Ocean University, Keelung, Taiwan
Paper No:
FEDSM2006-98090, pp. 903-907; 5 pages
Published Online:
September 5, 2008
Citation
Jaw, S, Hwang, RR, & Shyu, KL. "Development and Application of LED Illumination Color PIV." Proceedings of the ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. Volume 2: Fora. Miami, Florida, USA. July 17–20, 2006. pp. 903-907. ASME. https://doi.org/10.1115/FEDSM2006-98090
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