Velocity and Vorticity Measurement in Flow Field Using Laser Tagging Method by Photochromic Dye
A laser tagging method by photochromic dyc was used to easily visualize detailed flow structures of creeping flow and liquid film jet. Excimer laser (248nm) and Nd:YAG laser (355nm) were used to form dye traces in the flow tests and then observed by using a video camera. From the movement of the dye...
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| Format: | Artikel |
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Japanese Society for Experimental Mechanics (JSEM)
2011
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| Capaian Atas Talian: | http://doi.org/10.11395/jjsem.11.s147 http://doi.org/10.11395/jjsem.11.s147 http://umpir.ump.edu.my/11930/1/JSEM2011.pdf http://umpir.ump.edu.my/11930/6/fkp-2011-nurrina-%20Velocity%20and%20Vorticity.pdf |
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| Ringkasan: | A laser tagging method by photochromic dyc was used to easily visualize detailed flow structures of creeping flow and liquid film jet. Excimer laser (248nm) and Nd:YAG laser (355nm) were used to form dye traces in the flow tests and then observed by using a video camera. From the movement of the dye traces, velocity vector field was measured. Vorticity and divergence of velocity vector field were also calculated. As a result, it was confirmed that the laser tagging method by photochromic dye easily enabled the visualization of both flow tests. |
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