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Analysis of Vortex Flow Phenomena on Generic Delta Wing Planforms at Transonic Speeds

Hövelmann, Andreas and Winkler, Andreas and Hitzel, Stephan and Richter, Kai and Werner, Michael (2020) Analysis of Vortex Flow Phenomena on Generic Delta Wing Planforms at Transonic Speeds. In: 21st STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics, 142, pp. 307-316. Springer Nature. 21. STAB/DGLR Symposium 2018, 06.-07. Nov. 2018, Darmstadt, Deutschland. DOI: 10.1007/978-3-030-25253-3_30 ISBN 978-3-030-25252-6 ISSN 1612-2909

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Official URL: https://doi.org/10.1007/978-3-030-25253-3_30

Abstract

This paper presents combined experimental and numerical investigations on the aerodynamics of a generic triple-delta wing configuration at transonic speeds up to high angles of attack with and without sideslip. Vortex flow effects such as vortex development, vortex-vortex and vortex-shock interactions are discussed for a particular wing planform, and selected results of wind tunnel tests and CFD computations are compared to each other. Thereby, a better understanding of transonic vortex flow phenomena observed is provided. The experimental analyses are based on measurements of forces and moments as well as surface pressures by pressure sensitive paint. The numerical investigations originate from URANS computations. Overall, it turns out that at low to medium angles of attack the results of both data sources are in acceptable agreement. At higher angles of attack, however, considerable discrepancies are noticed, both in the case of longitudinal and lateral motion. In particular, the experimental and numerical results emphasize a different prediction of vortex breakdown effects. These are – at the transonic conditions considered – highly linked to vortex-vortex and vortex-shock interactions.

Item URL in elib:https://elib.dlr.de/123859/
Document Type:Conference or Workshop Item (Speech)
Additional Information:Print ISBN 978-3-030-25252-6 Online ISBN 978-3-030-25253-3 ISSN-electronic 1860-0824
Title:Analysis of Vortex Flow Phenomena on Generic Delta Wing Planforms at Transonic Speeds
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Hövelmann, AndreasAirbus Defence & Space GmbHUNSPECIFIED
Winkler, AndreasAirbus Defence & Space GmbHUNSPECIFIED
Hitzel, StephanAirbus Defence & Space GmbHUNSPECIFIED
Richter, KaiKai.Richter (at) dlr.deUNSPECIFIED
Werner, Michaelmichael.werner (at) dlr.deUNSPECIFIED
Date:2020
Journal or Publication Title:21st STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:142
DOI :10.1007/978-3-030-25253-3_30
Page Range:pp. 307-316
Editors:
EditorsEmailEditor's ORCID iD
Dillmann, Andreasandreas.dillmann@dlr.deUNSPECIFIED
Heller, GerdAirbus BremenUNSPECIFIED
Krämer, EwaldInstitut für Aerodynamik und Gasdynamik Universität StuttgartUNSPECIFIED
Wagner, ClausClaus.Wagner@DLR.deUNSPECIFIED
Tropea, CameronFachgebiet Strömungslehre und Aerodynamik, TU DarmstadtUNSPECIFIED
Jakirlic, SuadTU DarmstadtUNSPECIFIED
Publisher:Springer Nature
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
ISSN:1612-2909
ISBN:978-3-030-25252-6
Status:Published
Keywords:Vortex Flow, Transonic Effects, Vortex-Vortex Interaction , Vor-tex-Shock Interaction, Wind Tunnel Experiments, CFD
Event Title:21. STAB/DGLR Symposium 2018
Event Location:Darmstadt, Deutschland
Event Type:international Conference
Event Dates:06.-07. Nov. 2018
Organizer:STAB/DGLR
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation, L - Military Technologies
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > High Speed Configurations, GO
Deposited By: Richter, Kai
Deposited On:29 Nov 2018 11:26
Last Modified:18 Jun 2020 09:36

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