TY - JOUR
T1 - Optimum pressure range evaluation toward aerodynamic measurements using PSP in low-pressure conditions
AU - Nagata, Takayuki
AU - Kasai, Miku
AU - Okudera, Tomohiro
AU - Sato, Hitomi
AU - Nonomura, Taku
AU - Asai, Keisuke
N1 - Publisher Copyright:
© 2020 IOP Publishing Ltd.
PY - 2020/8
Y1 - 2020/8
N2 - In the present study, new performance evaluation parameters for pressure-sensitive paint (PSP) were proposed, and the effects of ambient pressure on the characteristics of the PSP were evaluated. The proposed parameters allow us to determine the optimal pressure range on the basis of the following quantities: (1) the Stern-Volmer coefficient, (2) the normalized pressure sensitivity to intensity changes due to flow-induced pressure fluctuations, (3) the change in the intensity of PSP emissions in response to the given change in pressure, and (4) the signal-to-noise ratio of the change in the PSP emission intensity due to flow-induced pressure fluctuations. The characteristics of several types of PSP were evaluated using the proposed parameters. It was demonstrated that the proposed parameters enable a comparison of the effects of ambient pressure on the characteristics of PSP, and the optimal pressure range for aerodynamic measurements could be successfully identified for the different PSP.
AB - In the present study, new performance evaluation parameters for pressure-sensitive paint (PSP) were proposed, and the effects of ambient pressure on the characteristics of the PSP were evaluated. The proposed parameters allow us to determine the optimal pressure range on the basis of the following quantities: (1) the Stern-Volmer coefficient, (2) the normalized pressure sensitivity to intensity changes due to flow-induced pressure fluctuations, (3) the change in the intensity of PSP emissions in response to the given change in pressure, and (4) the signal-to-noise ratio of the change in the PSP emission intensity due to flow-induced pressure fluctuations. The characteristics of several types of PSP were evaluated using the proposed parameters. It was demonstrated that the proposed parameters enable a comparison of the effects of ambient pressure on the characteristics of PSP, and the optimal pressure range for aerodynamic measurements could be successfully identified for the different PSP.
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U2 - 10.1088/1361-6501/ab81bb
DO - 10.1088/1361-6501/ab81bb
M3 - Article
AN - SCOPUS:85087477983
SN - 0957-0233
VL - 31
JO - Measurement Science and Technology
JF - Measurement Science and Technology
IS - 8
M1 - 085303
ER -