Ozawa, Hiroshi and Laurence, Stuart Jon and Martinez Schramm, Jan and Wagner, Alexander and Hannemann, Klaus (2015) Fast‑response temperature‑sensitive‑paint measurements on a hypersonic transition cone. Experiments in Fluids, 56 (1), pp. 1-13. Springer Nature. doi: 10.1007/s00348-014-1853-y. ISSN 0723-4864.
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Official URL: http://link.springer.com/article/10.1007/s00348-014-1853-y/fulltext.html
Abstract
Experiments are performed using a fastresponse temperature-sensitive-paint (TSP) technique to measure the heat-flux distribution on a slender cone in a hypersonic shock tunnel under both laminar and transitional conditions. The millisecond-order test duration together with the self-luminosity of shock layers place stringent conditions on the choice of TSP luminophore and the TSP-layer thickness that can be employed. The luminosity and dimming from particulates in the free-stream cause additional problems in interpreting the obtained intensity profiles. Nevertheless, favorable agreement with thermocouple-based measurements show that it is possible to derive quantitatively accurate heat-flux distributions with the TSP technique for temperature rises of up to approximately 40 K above room temperature. The technique accuracy is adversely affected at higher temperatures, which is thought to result from non-constant thermal properties of the insulating base layer. At high unit Reynolds number conditions, time-resolved heat-flux distributions show large-scale unsteadiness in the boundary-layer transition location and reveal transient streamwise streaks developing in the transitional region.
Item URL in elib: | https://elib.dlr.de/93897/ | ||||||||||||||||||||||||
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Document Type: | Article | ||||||||||||||||||||||||
Additional Information: | Published online: 07. Dec. 2014, Article: 1853 | ||||||||||||||||||||||||
Title: | Fast‑response temperature‑sensitive‑paint measurements on a hypersonic transition cone | ||||||||||||||||||||||||
Authors: |
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Date: | 2015 | ||||||||||||||||||||||||
Journal or Publication Title: | Experiments in Fluids | ||||||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||||||
Open Access: | No | ||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||||||||||
Volume: | 56 | ||||||||||||||||||||||||
DOI: | 10.1007/s00348-014-1853-y | ||||||||||||||||||||||||
Page Range: | pp. 1-13 | ||||||||||||||||||||||||
Publisher: | Springer Nature | ||||||||||||||||||||||||
ISSN: | 0723-4864 | ||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||
Keywords: | temperature-sensitive-paint (TSP), hypersonic shock tunnel, boundary-layer transition, streamwise streaks | ||||||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||
HGF - Program: | Space | ||||||||||||||||||||||||
HGF - Program Themes: | Space Transportation | ||||||||||||||||||||||||
DLR - Research area: | Raumfahrt | ||||||||||||||||||||||||
DLR - Program: | R RP - Space Transportation | ||||||||||||||||||||||||
DLR - Research theme (Project): | R - Raumfahrzeugsysteme - Anlagen u. Messtechnik (old) | ||||||||||||||||||||||||
Location: | Göttingen | ||||||||||||||||||||||||
Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > Spacecraft | ||||||||||||||||||||||||
Deposited By: | Micknaus, Ilka | ||||||||||||||||||||||||
Deposited On: | 19 Dec 2014 16:17 | ||||||||||||||||||||||||
Last Modified: | 12 May 2023 13:04 |
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