Multi-Camera Pressure-Sensitive Paint Measurement

A multi-camera system leads a dramatic improvement to productivity of a pressuresensitive paint measurement in an industrial wind tunnel because the system measures pressure distribution of nearly whole of a test model at a time. However, in the multi-camera pressure-sensitive paint measurement system, there is a technical challenge to enhance the measurement accuracy of data that include overlapping areas observed by more than one camera. The problems to discuss are differences on seams at switching of cameras, the selfillumination correction, the pressure transformation method using individual calibration data of each camera and the temperature dependency of the pressure sensitive paint. This paper proposes a data processing method for the multi-camera pressure sensitive paint measurement, and it presents results of wind tunnel tests at transonic speeds to evaluate the proposed method.

[1]  Y. Le Sant,et al.  Low Speed Tests using PSP at ONERA , 2001 .

[2]  Kazunori Mitsuo,et al.  Data Processing of Pressure-Sensitive Paint for Industrial Wind Tunnel Testing , 2004 .

[3]  W. M. Ruyten,et al.  Self-illumination calibration technique for luminescent paint measurements , 1997 .

[4]  O. Brodersen,et al.  Drag Prediction of Engine -Airframe Interference Effects Using Unstructured Navier -Stokes Calculations , 2001 .

[5]  Kazunori Mitsuo,et al.  Temperature correction of PSP measurement using dual-luminophor coating , 2003, J. Vis..

[6]  Kazunori Mitsuo,et al.  Practical pressure-sensitive paint measurement system for industrial wind tunnels at JAXA , 2006 .

[7]  J. Bell,et al.  Surface Pressure Measurements Using Luminescent Coatings , 2003 .

[8]  Arnold Afb,et al.  Improved Data Processing for Pressure-Sensitive Paint Measurements in an Industrial Facility * , 2006 .

[9]  Y. Le Sant,et al.  Speed tests using PSP at ONERA , 2001 .

[10]  Kazunori Mitsuo,et al.  Temperature Correction of Pressure-Sensitive Paint for Industrial Wind Tunnel Testing , 2006 .

[11]  Kazuhiro Nakahashi,et al.  Surface triangulation for polygonal models based on CAD data , 2002 .

[12]  H. Hoheisel,et al.  Investigations of propulsion integration interference effects on a transport aircraft configuration , 1994 .

[13]  Wim Ruyten,et al.  On the Effects of Reflected Light in Luminescent Paint Measurements , 2000 .

[14]  Y. Le Sant,et al.  A Model Deformation Measurement Method and its Application on PSP Measurements , 2004 .