AERODYNAMIC APPLICATIONS OF PRESSURE SENSITIVE PAINT

A pressure measurement technique based on a photoluminescent coating is being developed and used for serodynamic applications. Visible light excites probe molecules in the paint and their luminescence is related to the static pressure. Details of the illumination, luminescence detection, and data reduction for this technique are presented. These include key issues such as temperature effects, camera calibration, and model movement. Results from this technique in a variety of flowfields are given. Comparisons with pressures measured using standard wall taps show good agreement.