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

Wake Evolution of Wing-Body Configuration from Roll-Up to Vortex Decay

Misaka, Takashi and Holzäpfel, Frank and Gerz, Thomas (2012) Wake Evolution of Wing-Body Configuration from Roll-Up to Vortex Decay. In: AIAA Paper 2012-0428, pp. 1-15. 50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 9 - 12 Jan 2012, Nashville, Tennessee, USA.

[img]
Preview
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
2MB

Abstract

The development of aircraft’s wake vortex from the roll-up until vortex decay is studied. An aircraft model and the surrounding flow field obtained from high-fidelity Reynolds-averaged Navier-Stokes simulation are swept through a ground-fixed computational domain to initialize the wake. After the wake initialization, the large-eddy simulation of the vortical wake is performed until vortex decay. The methodology is tested with the NACA0012 wing and applied to the DLR-F6 wing-body model. The roll-up process of the vorticity sheet from a main wing and the merge of an inboard wing vortex into the wingtip vortex are simulated. Vortex parameters such as the radially averaged circulation, vortex core radius and vortex separation are also evaluated. The growth rate of the vortex core radius is relatively small during the roll-up where the fine mesh resolution in the LES is required to capture the tiny vortex core in the RANS simulation.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Wake Evolution of Wing-Body Configuration from Roll-Up to Vortex Decay
Authors:
AuthorsInstitution or Email of Authors
Misaka, TakashiDLR
Holzäpfel, FrankDLR
Gerz, ThomasDLR
Date:January 2012
Journal or Publication Title:AIAA Paper 2012-0428
Refereed publication:Yes
In ISI Web of Science:No
Page Range:pp. 1-15
Status:Published
Keywords:Wake vortex, LES, Wake roll-up, Vortex decay
Event Title:50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
Event Location:Nashville, Tennessee, USA
Event Type:international Conference
Event Dates:9 - 12 Jan 2012
Organizer:American Institute of Aeronautics and Astronautics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:ATM and Operation
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Climate, Weather and Environment
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Cloud Physics and Traffic Meteorology
Deposited By: Takashi Misaka
Deposited On:06 Mar 2012 11:12
Last Modified:12 Dec 2013 21:37

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.