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Published January 1985 | Published
Report Open

Flow Velocity Measurement by Image Processing of Optically Activated Tracers


A computerized flow visualization technique capable of quantifying the flow field automatically has been developed. This technique uses afterglowing effect of optically activated phosphorescent particles to retrieve vectorial information on each trace. By using this information, in conjunction with computer image processing, the flow field of a free surface transient vortex was investigated.

Additional Information

© 1985 AIAA. The research described in this paper was carried out by the Jet Propulsion Laboratory, California Institute of Technology, and was sponsored by the National Aeronautics and Space Administration. The authors extend their gratitude to Mr. G. Hicks and Mr. R. Graves for their support and valuable suggestions. The authors also thank Messrs. R. Smither and T. Wynne for their contributions in fabrication, assembly, and conduction of the experiments.

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Published - Gharib_1985p85-0172.pdf


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