Studies of Fluid Flow by Photography Using a Non-Disturbing Light-Sensitive Indicator

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: A powerful flow-visualization technique in described which overcomes the disadvantages of primitive flow-visualization methods (lack of precision, clarity and/or convenience relative to the commonly used probe techniques). The new technique uses a tracer fluid which is continuously present in latent form in the test fluid (eliminating injection problems) and which undergoes a dramatic color change (a reversible photochromic reaction) in a pattern generated instantly by irradiation with a pattern of ultraviolet light. A typical setup employs this fluid in some transparent flow channel, with an ultraviolet light source (such as a frequency-doubled ruby laser), a suitable background light source and a high speed motion-picture camera. Many previously intractable fluid dynamics problems have yielded to this technique, and improved resolution and the use of computer logging should greatly increase its utility.
Publication Date: 1973-04-01
DOI: 10.5594/J08882
Link: https://doi.org/10.5594/J08882
Author(s): R. L. Hummel, J.W. Smith

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R. L. Hummel and J.W. Smith; Studies of Fluid Flow by Photography Using a Non-Disturbing Light-Sensitive Indicator, Journal of the SMPTE ( Volume: 82, Issue: 4, April 1973); SMPTE, 1973. Available at https://doi.org/10.5594/J08882

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R. L. Hummel and J.W. Smith; Studies of Fluid Flow by Photography Using a Non-Disturbing Light-Sensitive Indicator, Journal of the SMPTE ( Volume: 82, Issue: 4, April 1973); SMPTE, 1973. Available at https://doi.org/10.5594/J08882

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<span class="citation">R. L. Hummel and J.W. Smith; <cite>Studies of Fluid Flow by Photography Using a Non-Disturbing Light-Sensitive Indicator</cite>, Journal of the SMPTE ( Volume: 82, Issue: 4, April 1973); SMPTE, 1973. Available at <a href="https://doi.org/10.5594/J08882" target="_blank" rel="noopener">https://doi.org/10.5594/J08882</a></span>

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<li>
R. L. Hummel and J.W. Smith; <cite id="bib-10-5594-j08882">Studies of Fluid Flow by Photography Using a Non-Disturbing Light-Sensitive Indicator</cite>, Journal of the SMPTE ( Volume: 82, Issue: 4, April 1973); SMPTE, 1973
<span class="doi">10.5594/J08882</span>
</li>