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Development of Pressure Sensitive Paint (PSP) for non flat models in steady transonic flow conditions

Engler, R. (1995) Development of Pressure Sensitive Paint (PSP) for non flat models in steady transonic flow conditions. IEEE Service Center, 445 HOES Lane, Piscataway,. ICASF International Congress on Instrumentation in Aerospace Simulation Facilities, US Air Force Wright Laboratory Flight Dynamics Directorate Wright-Patterson AFB, Ohio, 18.-21. July 1995. ISBN 0-7803-2088-3.

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Abstract

To achieve the diner calibration of pressure-sensitive paint of a coated model in the wind-tunnel, using the pixel by pixel calibration, a resolution of absolute pressure up to 2mbar in comparison to the conventional PSI technique is possible. However, this is only achieved by using an image processing method for removing image distortions, and recording the surface temperature of the model simultaneously. In this case an angular influence of illumination or the resulting emission will be compensated automatically. The results obtained show that in the immediately future the range of application will extend from subsonic, into the hypersonic regime. Furthermore, the simultaneous recording of surface temperature will play an increasing role, since then it also become possible to evaluate wall shear stress. For exact measurements of unsteady flows a first step was made to acquire periodic flow phenomena. The use of extremely sensitive, low-noise video cameras will certainly allow surface pressure measurement of such processes in the future

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1999,
Title:Development of Pressure Sensitive Paint (PSP) for non flat models in steady transonic flow conditions
Authors:
AuthorsInstitution or Email of Authors
Engler, R.UNSPECIFIED
Date:1995
Page Range:33.1-33.8
Publisher:IEEE Service Center, 445 HOES Lane, Piscataway,
ISBN:0-7803-2088-3
Status:Published
Keywords:Transonic flow, oxygin-quenching, optical pressure measurement, flow visualization, pressure-sensitive paint
Event Title:ICASF International Congress on Instrumentation in Aerospace Simulation Facilities, US Air Force Wright Laboratory Flight Dynamics Directorate Wright-Patterson AFB, Ohio, 18.-21. July 1995
Organizer:US Air Force Wright Laboratory Flight Dynamics Directorate Wright-Patterson AFB
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L ST - Starrflüglertechnologien
DLR - Research theme (Project):UNSPECIFIED
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Strömungsmechanik
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 20:41

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