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Unsteady Pressure Measurements by means of PSP in Cryogenic Conditions

Klein, Christian and Yorita, Daisuke and Henne, Ulrich and Kleindienst, Tobias and Koch, Stefan and Ondrus, Vladimir (2020) Unsteady Pressure Measurements by means of PSP in Cryogenic Conditions. In: AIAA Scitech Forum, 2020 (0122), pp. 1-10. AIAA. AIAA Science and Technology Forum and Exposition 2020, 06.-10.01.2020, Orlando, FL, USA. doi: 10.2514/6.2020-0122.

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Official URL: https://doi.org/10.2514/6.2020-0122


The capability of the Pressure-Sensitive Paint (PSP) method for application in unsteady flow in cryogenic wind tunnels was investigated. The experiments were conducted in the Cryogenic Ludwieg-Tube Gottingen (KRG). The suction side of the 2-D airfoil model LV2F was coated with PtTFPP/PTMSP and tested in a nitrogen atmosphere. The measurements were performed at test conditions in the temperature range from 120 to 283 K, at Mach numbers M = 0.72, 0.74, 0.76, and 0.78 and chord Reynolds number up to Re = 14.6 x 10^6. PSP and conventional pressure data were acquired for all different test cases. The oxygen concentration of the flow was set to about 1000 ppm by preconditioning supplying dry air. As a result, the intensity-based PSP method successfully visualized the pressure distribution on the LV2F model under cryogenic conditions and clearly shock oscillations could be detected by means of PSP.

Item URL in elib:https://elib.dlr.de/134613/
Document Type:Conference or Workshop Item (Speech)
Additional Information:AIAA-2020-0122
Title:Unsteady Pressure Measurements by means of PSP in Cryogenic Conditions
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Klein, Christianchristian.klein (at) dlr.dehttps://orcid.org/0000-0001-7592-6922
Yorita, Daisukedaisuke.yorita (at) dlr.deUNSPECIFIED
Henne, Ulrichulrich.henne (at) dlr.deUNSPECIFIED
Kleindienst, Tobiastobias.kleindienst (at) dlr.deUNSPECIFIED
Koch, StefanStefan.Koch (at) dlr.deUNSPECIFIED
Ondrus, Vladimirvlondrus (at) fh-muenster.deUNSPECIFIED
Date:5 January 2020
Journal or Publication Title:AIAA Scitech Forum, 2020
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.2514/6.2020-0122
Page Range:pp. 1-10
Series Name:Conference Proceedings online
Keywords:Pressure-Sensitive Paint, time-resolved PSP, cryogenic PSP, cryoPSP, LV2F, KRG
Event Title:AIAA Science and Technology Forum and Exposition 2020
Event Location:Orlando, FL, USA
Event Type:international Conference
Event Dates:06.-10.01.2020
Institution:Deutsches Zentrum für Luft- und Raumfahrt e.V.
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation (old)
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Experimental Methods, GO
Institute for Aerodynamics and Flow Technology > High Speed Configurations, GO
Deposited By: Micknaus, Ilka
Deposited On:08 Jun 2020 18:02
Last Modified:08 Jun 2020 18:02

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