Abstract
Pressure-sensitive paint (PSP) technique has been broadly employed for qualitative and quantitative purposes in engineering and laboratory because of its prominent advantages of time-saving, cost-efficient and continuous pressure distribution since late 1980s, despite of its potential for more precise accuracy. Preliminary tests on supercritical airfoil have een conducted with in-house, single-component fluorescent PSP in 0.6×0.6 m transonic wind tunnel by self-established measurement system. The tunnel was operated at Mach number from0.6 to 0.9 and angles of attack from zero to 2 degree. Traditional pressure scanning method, PSI, was employed simultaneously during tests. The fact that PSP results are qualitatively consistent with that of PSI displays potential perspective of national PSP applications for more details about flow field.
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