Chris Wheeler, Andrew Hyslop, Joao Vieira, Laurent Le Page, Mark K. Quinn, Nafiz H. K. Chowdhury1and Luke J. Doherty

DOI Number XXX-YYY-ZZZ

Conference Number HiSST-2022-0442

Experiments have been conducted for the first time to investigate the use of binary pressure sensitive paint (PSP) on a free-flying aerodynamic model in the Oxford High Density Tunnel at Mach 7. The model was a 7° half angle cone with a 1.25 mm nose radius and overall length of 250 mm. A binary PSP consisting of a RuDPP3 pressure luminophore and Fluorescein reference luminophore was applied to the model. The model movement and response of the paint were tracked throughout the flight using high-speed videography. The model also featured an on-board inertial measurement unit, thereby providing simultaneous measurement of the aerodynamic forces and surface pressure distribution. The measured surface pressure was compared with analytical and numerical predictions and found to be ≈3kPa higher than expected.

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In Categories: HiSST 2022, Testing and Evaluation
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