Numerical modeling of an aspirated total temperature probe

Computations using a model of an aspirated total temperature probe are compared with some classical experimental data from NACA Lewis Laboratory and with a numerical solution using CFD ACE+. Convection and radiation to and from the probe surfaces, radiation from the hot gas surrounding the probe, and conduction in the probe materials are computed by the model. The model consistently predicted the recovery temperature to within about 5 degrees R (3 K) for a temperature range of 1500 to 2500 R (833 to 1389 K).