Surface Pressure Measurements on a Forebody Using Pressure Sensitive Paint

K.M. Chung ； Y.X. Huang ； C.Y. Lin ； Y.T. Wu

《Journal of Aeronautics, Astronautics and Aviation》 53卷3期 Vol.53 No.3 (2021/09) Pp. 369-374

https://doi.org/10.6125/JoAAA.202109_53(3).03

摘要

Pressure sensitive paint (PSP) gives the full-field pressure pattern on the model surface with a high spatial resolution and is an alternative to traditional pressure taps used in a wind tunnel model. This study determines surface pressure patterns on the forebody of an AGARD B model in a compressible flow and the data is in comparison with a numerical simulation using ANSYS Fluent software. The lift and drag coefficients are calculated and compared with data in literature. The experiments use a blowdown wind tunnel. The freestream Mach number is 0.83 and the angle of attack ranges from -4° to 8°. The difference between the results using PSP and the numerical simulation is less than 5%.

關鍵字

pressure sensitive paint ； AGARD B ； forebody

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