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Aeroelastic Simulations in Aircraft Design and Analysis using different Level CFD Methods

Voß, R. (2003) Aeroelastic Simulations in Aircraft Design and Analysis using different Level CFD Methods. 50th Annual General Meeting & Conference, Ottawa, Canada, 28-30 April 2003.

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Abstract

Three different levels of unsteady CFD methods are used for transonic aeroelastic computations at DLR. These are - in order of increasing fidelity and computational effort - the Transonic Doublet Lattice Method (TDLM) - a linearised frequency domain unsteady method, the boundary-layer coupled blockstructured Euler (EUVIMB) and Full Potential (VUN3D) codes, and DLR's TAU-code, an unstructured hybrid grid Navier-Stokes code. The latter two ones being nonlinear time-domain methods. After a brief review of these codes, their applications for typical aeroelastic problems is presented: Static aeroelastic simulations for a windtunnel model wing and for a complete aircraft configuration, adopting Navier-Stokes and Full Potential with boundary-layer coupled with finite element models and using different spatial coupling methods. Flutter analysis of different wing models (AMP wing, Blended Wing Body), performed both in frequency and time domain, and adopting the TDLM and Tull-Potential with boundary-layer codes. Nonlinear transonic limit cycle flutter (LCO) and buffet of a supercritical NLR7301 airfoil with 2 dynamic degrees of freedom (pitch and heave) partially with flow separation, adopting the Navier-Stokes and the Full Potential code with boundary layer.

Item URL in elib:https://elib.dlr.de/14493/
Document Type:Conference or Workshop Item (Speech)
Additional Information: LIDO-Berichtsjahr=2005,
Title:Aeroelastic Simulations in Aircraft Design and Analysis using different Level CFD Methods
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Voß, R.UNSPECIFIEDUNSPECIFIED
Date:2003
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:aeroelasticity, fluid-structure coupling, unsteady aerodynmics, CFD
Event Title:50th Annual General Meeting & Conference, Ottawa, Canada, 28-30 April 2003
Organizer:Canadian Aeronautics and Space Institute
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flexible Aircraft (old)
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: Erdmann, Daniela
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 21:55

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