The thermal transient anemometer is a measurement device to obtain area average values of temperature and velocity. Its development was motivated by HVAC (heating, ventilation and air conditioning) and cooling-air circuit automotive development efforts. Analytic considerations, which address utilizing room temperature velocity calibration data in applications with elevated ambient temperatures, have been evaluated and supported by direct experiments. Free stream turbulence levels, as expected for the intended applications, have also been shown to have no effect on the velocity calibrations.

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