Costantini, Marco and Fey, Uwe and Henne, Ulrich and Klein, Christian (2012) Influence of non-adiabatic model surface on transition measurements using the Temperature-Sensitive Paint technique in cryogenic wind tunnels. 42th AIAA Fluid Dynamics Conference and Exhibit, 2012-06-25 - 2012-06-28, New Orleans, Louisiana, USA.
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Abstract
Tests were conducted at the cryogenic blow-down wind tunnel facility DNW-KRG in Göttingen, Germany, with the aim of investigating the influence of the thermal gradients on the model surface on onset of boundary layer laminar-turbulent transition. The laminar airfoil under investigation was tested at high Reynolds and both low and high subsonic Mach numbers. Boundary layer transition was detected non-intrusively by means of the Temperature-Sensitive Paint technique. The effect of the temperature drop occurring during a run at DNW-KRG on the stability of the laminar boundary layer was investigated. Various combinations of flow conditions and angles-of-attack were employed in order to investigate different stability situations. The influence of the temperature difference between flow and model surface on boundary layer transition development was examined. The unfavorable impact of the non-adiabatic thermal boundary condition at the model surface was identified to be dependent on the considered boundary layer stability situation.
Item URL in elib: | https://elib.dlr.de/71824/ | ||||||||||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||
Title: | Influence of non-adiabatic model surface on transition measurements using the Temperature-Sensitive Paint technique in cryogenic wind tunnels | ||||||||||||||||||||
Authors: |
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Date: | 2012 | ||||||||||||||||||||
Refereed publication: | No | ||||||||||||||||||||
Open Access: | No | ||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||
Page Range: | pp. 1-27 | ||||||||||||||||||||
Series Name: | Conference Proceedings online | ||||||||||||||||||||
Status: | Published | ||||||||||||||||||||
Keywords: | TSP, boundary layer transition, non-adiabatic model surface | ||||||||||||||||||||
Event Title: | 42th AIAA Fluid Dynamics Conference and Exhibit | ||||||||||||||||||||
Event Location: | New Orleans, Louisiana, USA | ||||||||||||||||||||
Event Type: | international Conference | ||||||||||||||||||||
Event Start Date: | 25 June 2012 | ||||||||||||||||||||
Event End Date: | 28 June 2012 | ||||||||||||||||||||
Organizer: | AIAA | ||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||
HGF - Program: | Aeronautics | ||||||||||||||||||||
HGF - Program Themes: | Aircraft Research (old) | ||||||||||||||||||||
DLR - Research area: | Aeronautics | ||||||||||||||||||||
DLR - Program: | L AR - Aircraft Research | ||||||||||||||||||||
DLR - Research theme (Project): | L - Simulation & Validation (old) | ||||||||||||||||||||
Location: | Göttingen | ||||||||||||||||||||
Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > Experimental Methods Institute of Aerodynamics and Flow Technology > Fluid Systems | ||||||||||||||||||||
Deposited By: | Micknaus, Ilka | ||||||||||||||||||||
Deposited On: | 16 Jul 2012 15:59 | ||||||||||||||||||||
Last Modified: | 24 Apr 2024 19:37 |
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