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Towards density reconstruction of helicopter blade tip vortices from high-speed background oriented Schlieren data

Braukmann, Johannes N. and Bauknecht, Andre and Wolf, Christian and Raffel, Markus (2018) Towards density reconstruction of helicopter blade tip vortices from high-speed background oriented Schlieren data. In: New Results in Numerical and Experimental Fluid Mechanics XI Notes on Numerical Fluid Mechanics and Multidisciplinary Design 136, 136. Springer. pp. 375-385. ISBN 978-3-319-64518-6. ISSN 1612-2909

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Official URL: https://doi.org/10.1007/978-3-319-64519-3

Abstract

A method for the reconstruction of 3D density distributions of blade tip vortices is presented. The reconstruction is performed using a filtered back-projection on 2D density gradient data from a high-speed LS-BOS (laser-speckle-illuminated background-oriented Schlieren) setup, captured during the STAR (smart-twisting active rotor) project. Density profiles of blade tip vortices are presented, as well as comparisons of the size and development of the vortices. In addition the comparison to a PIV (particle image velocimetry) measurement is shown.

Item URL in elib:https://elib.dlr.de/118095/
Document Type:Contribution to a Collection
Additional Information:ISSN 1860-0824 (elektronisch; ISBN 978-3-319-64519-3 (eBook); Paper Doi.org/10.1007/978-3-319-64519-3_34
Title:Towards density reconstruction of helicopter blade tip vortices from high-speed background oriented Schlieren data
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Braukmann, Johannes N.Johannes.Braukmann (at) dlr.dehttps://orcid.org/0000-0001-8046-9623
Bauknecht, AndreAndre.Bauknecht (at) dlr.dehttps://orcid.org/0000-0002-4076-780X
Wolf, ChristianChristian.Wolf (at) dlr.dehttps://orcid.org/0000-0002-9052-7548
Raffel, MarkusMarkus.Raffel (at) dlr.deUNSPECIFIED
Date:2018
Journal or Publication Title:New Results in Numerical and Experimental Fluid Mechanics XI
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:136
DOI :10.1007/978-3-319-64519-3
Page Range:pp. 375-385
Editors:
EditorsEmail
Dillmann, AndreasDLR Göttingen
Heller, GerdAirbus Bremen
Krämer, EwaldUNI Stuttgart
Wagner, ClausDLR Göttingen
Bansmer, StephanTU Braunschweig
Radespiel, RolfTU Braunschweig
Semaan, RichardTU Braunschweig
Publisher:Springer
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design 136
ISSN:1612-2909
ISBN:978-3-319-64518-6
Status:Published
Keywords:BOS, vortex, density, reconstruction
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Virtual Aerodynamic Rotorcraft
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Helicopter, GO
Deposited By: Bachmann, Barbara
Deposited On:06 Feb 2018 11:01
Last Modified:24 May 2018 10:53

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