The warm-side thermal chamber used for thermography
experiments has been outfitted with a servo-motor-controlled traversing system for
moving probes in three dimensions. Air velocity and air temperature probes collect data
near the surface of test specimens. An electronic dial gauge maps the geometry of surfaces
being tested. These measurements complement infrared surface temperature measurements by
aiding the analysis of localized natural convection film coefficients. Comparing measured
surface temperatures to simulated surface temperatures has led us to conclude that
variations in local convection heat transfer rates are significant.
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Thermal boundary layer probe for
measuring air temperatures near surfaces |
Fluid boundary layer probe for measuring air velocity near surfaces. |
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