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Boundary‑layer transition on a rotor blade measured by temperature‑sensitive paint, thermal imaging and image derotation

Lang, Waldemar and Gardner, Anthony Donald and Mariappan, Sathesh and Klein, Christian and Raffel, Markus (2015) Boundary‑layer transition on a rotor blade measured by temperature‑sensitive paint, thermal imaging and image derotation. Experiments in Fluids, 56 (6), pp. 1-14. Springer. DOI: 10.1007/s00348-015-1988-5 ISSN 0723-4864

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Official URL: http://link.springer.com/article/10.1007/s00348-015-1988-5

Abstract

Transition measurements using temperature sensitive paint (TSP) and infrared (IR) imaging are shown for a model-scale rotor blade using deblurring by an axial rotating mirror. The effective angle of attack was computed from the geometric angle of attack and the downwash measured using particle image velocimetry (PIV), and this agreed well with actuator disc computations. The transition locations extracted from TSP and IR agreed well, and also agreed with predictions from an Euler- boundary layer code with an envelope-e^N transition prediction.

Item URL in elib:https://elib.dlr.de/86656/
Document Type:Article
Additional Information:Published online: 29. May 2015, Article 118
Title:Boundary‑layer transition on a rotor blade measured by temperature‑sensitive paint, thermal imaging and image derotation
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Lang, Waldemarwaldemar.lang (at) dlr.deUNSPECIFIED
Gardner, Anthony Donaldtony.gardner (at) dlr.deUNSPECIFIED
Mariappan, Satheshsathesh (at) iitk.ac.inUNSPECIFIED
Klein, Christianchristian.klein (at) dlr.deUNSPECIFIED
Raffel, Markusmarkus.raffel (at) dlr.deUNSPECIFIED
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/s00348-015-1988-5
Page Range:pp. 1-14
Publisher:Springer
ISSN:0723-4864
Status:Published
Keywords:transition, boundary layer, rotor, TSP, IR, image derotation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:rotorcraft, fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research, L AR - Aircraft Research
DLR - Research theme (Project):L - The Virtual Aerodynamic Rotorcraft, L - Simulation and Validation
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Helicopters
Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Micknaus, Ilka
Deposited On:08 Jun 2015 13:10
Last Modified:06 Sep 2019 15:25

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