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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 (2018) Analysis of Vortex Flow Phenomena on Generic Delta Wing Planforms at Transonic Speeds. In: 21th STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics. 21. STAB/DGLR Symposium 2018, 06.-07. Nov. 2018, Darmstadt, Deutschland. ISBN 978-331964518-6 ISSN 1612-2909

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Official URL: https://www.sla.tu-darmstadt.de/stab_2018/stab2018_home.de.jsp

Abstract

This paper presents combined experimental and numerical investiga-tions on the aerodynamics of a generic triple-delta wing configuration at tran-sonic 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 un-derstanding of transonic vortex flow phenomena observed is provided. The ex-perimental 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 medium an-gles of attack the results of both data sources are in good agreement. At higher angles of attack, however, considerable discrepancies are noticed, especially in the case of 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)
Title:Analysis of Vortex Flow Phenomena on Generic Delta Wing Planforms at Transonic Speeds
Authors:
AuthorsInstitution or Email of AuthorsAuthors 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:November 2018
Journal or Publication Title:21th STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
ISSN:1612-2909
ISBN:978-331964518-6
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:national Conference
Event Dates:06.-07. Nov. 2018
Organizer:Technische Universität Darmstadt
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:10 Jan 2019 14:05

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