Skin friction acquisition of an impinging jet-flat plate setup using temperature-sensitive paint (TSP)

Kurzfassung

Experiments were conducted using a perpendicular impinging jet setup at the University of Toronto Institute for Aerospace Studies. A 3 mm diameter jet nozzle was affixed 60 mm off the plate surface, providing a nozzle diameter-to-offset ratio of H/D = 20. A jet exit velocity of 28 m/s provides a Reynolds number of Re_D = 5700. A 100 x 120 mm aluminum plate coated in a Europium-based TSP was mounted below the jet, illuminated by a UV LED light and imaged by a LaVision sCMOS camera fitted with a 620/60 nm bandpass filter. TSP images were acquired across a range of ambient conditions, camera orientations and sampling frequencies, allowing for the comparison of data quality across different acquisition setups.