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The Analytical Modeling Of The Thermometric Performance Of Total Temperature Thermocouple Probes, Leroy Bertram Butler

Open Access Dissertations

A total temperature thermocouple probe immersed in a moving gas stream undergoes thermal energy exchange by means of forced convection between the thermocouple wires and the flowing gas stream, conduction along the thermocouple wires to the probe mount, and radiation between the thermocouple junction wires and any surrounding structure. In general, the thermocouple junction does not indicate the true (stagnation) temperature of the gas stream, thus necessitating the calibration of total temperature probes to obtain correct temperature measurements.

Two models are developed to predict the temperature indicated by a total temperature probe (utilizing type K thermocouple wire) for a given …