Application of the Polymer Based Pressure Sensitive Paint for Qualitative and Quantitative Flow Visualisation in a Transonic Flow

2015 ◽  
pp. 441-446
Author(s):  
K. H. Lo ◽  
H. Zare-Behtash ◽  
K. Kontis ◽  
N. Qin
Keyword(s):  
Transonic Flow ◽  
Flow Visualisation ◽  
Pressure Sensitive Paint ◽  
Qualitative And Quantitative ◽  
Pressure Sensitive ◽  
Quantitative Flow

Unsteady Pressure Measurement on Oscillating Blade in Transonic Flow Using Fast-Response Pressure-Sensitive Paint

2017 ◽  
Author(s):  
Toshinori Watanabe ◽  
Toshihiko Azuma ◽  
Seiji Uzawa ◽  
Takehiro Himeno ◽  
Chihiro Inoue
Keyword(s):  
Surface Pressure ◽  
Transonic Flow ◽  
Aerodynamic Force ◽  
Fast Response ◽  
Pressure Sensitive Paint ◽  
Unsteady Pressure ◽  
Pressure Distributions ◽  
Pressure Sensitive ◽  
Unsteady Surface Pressure ◽  
Response Pressure

A fast-response pressure-sensitive paint (PSP) technique was applied to the measurement of unsteady surface pressure of an oscillating cascade blade in a transonic flow. A linear cascade was used, and its central blade was oscillated in a translational manner. The unsteady pressure distributions of the oscillating blade and two stationary neighbors were measured using the fast-response PSP technique, and the unsteady aerodynamic force on the blade was obtained by integrating the data obtained on the pressures. The measurements made with the PSP technique were compared with those obtained by conventional methods for the purpose of validation. From the results, the PSP technique was revealed to be capable of measuring the unsteady surface pressure, which is used for flutter analysis in transonic conditions.

scholarly journals Application of fast-responding pressure-sensitive paint to a hemispherical dome in unsteady transonic flow

2010 ◽  
Vol 50 (6) ◽  
pp. 1495-1505 ◽  
Author(s):  
Shuo Fang ◽  
Kevin J. Disotell ◽  
Samuel R. Long ◽  
James W. Gregory ◽  
Frank C. Semmelmayer ◽  
...  
Keyword(s):  
Transonic Flow ◽  
Pressure Sensitive Paint ◽  
Pressure Sensitive ◽  
Hemispherical Dome

Polymer/Ceramic Pressure-Sensitive Paint with Reduced Roughness for Unsteady Measurement in Transonic Flow

AIAA Journal ◽  
2018 ◽  
Vol 56 (6) ◽  
pp. 2145-2156 ◽  
Author(s):  
Yosuke Sugioka ◽  
Daiju Numata ◽  
Keisuke Asai ◽  
Shunsuke Koike ◽  
Kazuyuki Nakakita ◽  
...  
Keyword(s):  
Transonic Flow ◽  
Pressure Sensitive Paint ◽  
Pressure Sensitive

scholarly journals Quantitative Visualisation of Compressible Flows

2018 ◽  
Vol 2018 (1) ◽  
pp. 137-145
Author(s):  
Wit Stryczniewicz
Keyword(s):  
Transonic Flow ◽  
Compressible Flows ◽  
Flow Visualisation ◽  
Image Velocimetry ◽  
Boundary Layer Interaction ◽  
Field Velocity ◽  
Induced Flow ◽  
Transonic And Supersonic Flows ◽  
Quantitative Flow

Abstract The paper demonstrates the feasibility of quantitative flow visualisation methods for investigation of transonic and supersonic flows. Two methods and their application for retrieving compressible flow field properties has been described: Background Oriented Schlieren (BOS) and Particle Image Velocimetry (PIV). Recently introduced BOS technique extends the capabilities of classical Schlieren technique by use of digital image processing and allow to measure density gradients field. In the presented paper a review of applications of BOS technique has been presented. The PIV is well established technique for whole field velocity measurements. This paper presents application of PIV for determination of the shock wave position above airfoil in transonic flow regime. The study showed that application of quantitative flow visualisation techniques allows to gain new insights on the complex phenomenon of supersonic and transonic flow over airfoils like shock-boundary layer interaction and shock induced flow separation.

Pressure-Sensitive Paint Application to an Oscillating Shock Wave in a Transonic Flow

AIAA Journal ◽  
2015 ◽  
Vol 53 (11) ◽  
pp. 3208-3220 ◽  
Author(s):  
M.-C. Merienne ◽  
P. Molton ◽  
R. Bur ◽  
Y. Le Sant
Keyword(s):  
Shock Wave ◽  
Transonic Flow ◽  
Pressure Sensitive Paint ◽  
Pressure Sensitive

Unsteady Pressure Measurement on Oscillating Blade in Transonic Flow Using Fast-Response Pressure-Sensitive Paint

2018 ◽  
Vol 140 (6) ◽  
Author(s):  
Toshinori Watanabe ◽  
Toshihiko Azuma ◽  
Seiji Uzawa ◽  
Takehiro Himeno ◽  
Chihiro Inoue
Keyword(s):  
Surface Pressure ◽  
Transonic Flow ◽  
Aerodynamic Force ◽  
Fast Response ◽  
Pressure Sensitive Paint ◽  
Unsteady Pressure ◽  
Pressure Distributions ◽  
Pressure Sensitive ◽  
Unsteady Surface Pressure ◽  
Response Pressure

A fast-response pressure-sensitive paint (PSP) technique was applied to the measurement of unsteady surface pressure of an oscillating cascade blade in a transonic flow. A linear cascade was used, and its central blade was oscillated in a translational manner. The unsteady pressure distributions of the oscillating blade and two stationary neighbors were measured using the fast-response PSP technique, and the unsteady aerodynamic force on the blade was obtained by integrating the data obtained on the pressures. The measurements made with the PSP technique were compared with those obtained by conventional methods for the purpose of validation. From the results, the PSP technique was revealed to be capable of measuring the unsteady surface pressure, which is used for flutter analysis in transonic conditions.

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