elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Comparison between two-dimensional and three-dimensional dynamic stall

Kaufmann, Kurt and Gardner, Anthony Donald and Costes, Michel (2016) Comparison between two-dimensional and three-dimensional dynamic stall. In: New Results in Numerical and Experimental Fluid Mechanics X Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 132. Springer International Publishing Switzerland 2016. pp. 315-325. ISBN 978-319-27278-8. ISSN 1612-2909

Full text not available from this repository.

Official URL: http://link.springer.com

Abstract

Numerical computations using the DLR-TAU code investigate the differences and similarities between dynamic stall on the two-dimensional OA209 airfoil and the three-dimensional OA209 finite wing. The mean angle of attack in the two-dimensional computations is reduced to match the effective angle of attack at the spanwise position where in the finite wing computations the dynamic stall vortex starts to evolve. Small variations of the mean angle of attack in the two-dimensional numerical simulations show a change from trailing edge separation only to deep dynamic stall. The analysis of the three-dimensional flow field reveals that after the evolution of the dynamic stall vortex the flow field is split into two parts: 1. High spanwise velocity towards the wing’s root in the region between the plane of the first occurrence of stall and the wing’s root. 2. High spanwise velocities towards the wing’s tip in the region between the plane of the first occurrence of stall and wing tip.

Item URL in elib:https://elib.dlr.de/91238/
Document Type:Contribution to a Collection
Additional Information:Online ISBN: 978-3-319-27279-5 ISSN: 1860-0824 (electronic)
Title:Comparison between two-dimensional and three-dimensional dynamic stall
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kaufmann, Kurtkurt.kaufmann (at) dlr.deUNSPECIFIED
Gardner, Anthony Donaldtony.gardner (at) dlr.deUNSPECIFIED
Costes, Michelmichel.costes (at) onera.frUNSPECIFIED
Date:January 2016
Journal or Publication Title:New Results in Numerical and Experimental Fluid Mechanics X
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:132
DOI :10.1007/978-3-319-27279-5_28
Page Range:pp. 315-325
Editors:
EditorsEmail
Dillmann, AndreasDLR
Heller, GerdAirbus Deutschland, Bremen, Germany
Krämer, EwaldUNI Stuttgart
Wagner, ClausDLR
Breitsamer, ChristianTU München
Publisher:Springer International Publishing Switzerland 2016
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
ISSN:1612-2909
ISBN:978-319-27278-8
Status:Published
Keywords:helicopter aerodynamics, dynamic stall, numerical computations
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 of Aerodynamics and Flow Technology > Helicopters
Deposited By: Bachmann, Barbara
Deposited On:10 Jan 2017 15:57
Last Modified:22 Jan 2018 16:50

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.