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

Improvement of the Automatic Grid Adaptation for Vortex Dominated Flows using Advanced Vortex Indicators with the DLR-TAU Code.

Widhalm, Markus and Schuette, Andreas and Alrutz, Thomas and Orlt, Matthias (2007) Improvement of the Automatic Grid Adaptation for Vortex Dominated Flows using Advanced Vortex Indicators with the DLR-TAU Code. Springer. STAB 2006, Darmstadt.

[img]
Preview
PDF
7MB

Abstract

Vortex dominated flows appear in many flow simulations such as wake turbulence of an aircraft or a delta wing at a high angle of attack. For detailed investigations of vortex breakdown, vortex interactions or tracing vortex cores, an automated grid adaptation with suitable vortex indicators is essential. Physical indicators, e.g. the vorticity magnitude or the total pressure loss, are in most cases not sufficient for correctly identifying a vortex core. This paper presents advanced vortex core indicators which properly identify a vortical structure independent of the flow case. These vortex indicators are tested in typical flow applications to determine the right cut-off value which is important for an automated adaptation procedure. A grid refinement for a delta wing testcase in combination with the newly introduced vortex indicators will demonstrate the improvements compared to the standard pressure loss indicator.

Item URL in elib:https://elib.dlr.de/50983/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Improvement of the Automatic Grid Adaptation for Vortex Dominated Flows using Advanced Vortex Indicators with the DLR-TAU Code.
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Widhalm, MarkusUNSPECIFIEDUNSPECIFIED
Schuette, AndreasUNSPECIFIEDUNSPECIFIED
Alrutz, ThomasUNSPECIFIEDUNSPECIFIED
Orlt, MatthiasUNSPECIFIEDUNSPECIFIED
Date:2007
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:96
Editors:
EditorsEmail
Tropea, C.UNSPECIFIED
Jakirlic, S.UNSPECIFIED
Heinemann, H.J.UNSPECIFIED
Publisher:Springer
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
Status:Published
Keywords:Automatic Grid Adaptation, Vortex Dominated Flows, Vortex Indicators
Event Title:STAB 2006
Event Location:Darmstadt
Event Type:national Conference
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics (old)
Location: Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > CASE
Deposited By: Widhalm, Markus
Deposited On:06 Sep 2007
Last Modified:31 Jul 2019 19:20

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.