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Pressure Sensitive Paint Measurements in DLR's Transonic Wind Tunnel in Goettingen.

Engler, R. H. (1995) Pressure Sensitive Paint Measurements in DLR's Transonic Wind Tunnel in Goettingen. In: Proceedings 83rd STA Meeting (Supersonic Tunnel Association), Silver Spring, MD, USA, 2-4 April 1995..

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Kurzfassung

With a new "resection" method the PSP results were accurately measured and compared with conventional pressure tap measurements. 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 immediate 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. 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.

Dokumentart:Konferenzbeitrag (Paper)
Zusätzliche Informationen: LIDO-Berichtsjahr=1995, pages=12,
Titel:Pressure Sensitive Paint Measurements in DLR's Transonic Wind Tunnel in Goettingen.
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Engler, R. H.NICHT SPEZIFIZIERT
Datum:1995
Erschienen in:Proceedings 83rd STA Meeting (Supersonic Tunnel Association), Silver Spring, MD, USA, 2-4 April 1995.
Status:veröffentlicht
Stichwörter:Pressure sensitive paint, measurement technique, wind tunnel, pressure measurements, pressure sensor, optical, luminescence, flow visualization, fluorescence, pressure taps, oil flow pictures.
HGF - Forschungsbereich:NICHT SPEZIFIZIERT
HGF - Programm:Luftfahrt
HGF - Programmthema:keine Zuordnung
DLR - Schwerpunkt:NICHT SPEZIFIZIERT
DLR - Forschungsgebiet:L SI - Versuchs- und Simulationstechniken
DLR - Teilgebiet (Projekt, Vorhaben):NICHT SPEZIFIZIERT
Standort: Köln-Porz
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Über- und Hyperschalltechnologien
Hinterlegt von: elib DLR-Beauftragter
Hinterlegt am:02 Apr 2006
Letzte Änderung:27 Apr 2009 05:29

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