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Title of Journal: Exp Fluids

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Abbravation: Experiments in Fluids

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Springer-Verlag

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10.1006/cimm.1999.1570

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1432-1114

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Effect of experimental parameters and image noise

Authors: Jianghua Ke Douglas Bohl
Publish Date: 2010/08/07
Volume: 50, Issue: 2, Pages: 465-478
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Abstract

In this work the effect of experimental parameters on the error levels associated with simultaneous measurement of displacement and temperature using Molecular Tagging Velocimetry/Thermometry MTV/T was quantified via simulated images Images were simulated using Gaussian profile laser lines Noise was added to the images using a uniform random distribution and a Gaussian random distribution to simulate electronic noise and shot noise respectively The results showed that the error levels in the displacement and temperature measurements were inversely related for most experimental parameters including the laser line thickness fluid temperature and image delay times It is concluded that the dynamic range of the technique depends on the flow speeds and temperatures and must be determined for each experiment individually Error levels for 95 confidence were found to be better than 03°C for temperature and 02 pixels for displacement for typical realworld experimental parameters

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