Non-intrusive techniques for thermal measurements in microgravity fluid science experiments |
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| Institution: | 1. Purdue University Boiling and Two-Phase Flow Laboratory (PU-BTPFL), School of Mechanical Engineering, Purdue University, 585 Purdue Mall, West Lafayette, IN 47907, USA;2. NASA Glenn Research Center, 21000 Brookpark Road, Cleveland, OH 44135, USA;3. Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA;4. HX5, LLC 3000 Aerospace Parkway, Brookpark, OH 44142, USA |
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| Abstract: | Non intrusive techniques for thermal measurements in Microgravity Fluidynamics are considered in the paper: Liquid Crystals Tracers, Thermographic System, and Thin Foil Fluxmeter. Liquid crystals have been employed both as tracers (for the evaluation of the flow field organization) and as point thermometers (for the temperature distribution). Liquid surface measurements are performed in closed and open cells. Heat fluxes measurements have been performed by Thin Foil Fluxmeters and temperature by Thermographic Method. The Laboratory experimentation substantiate the applicability of these techniques in fluidynamics experimentation on Space Platforms. |
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