elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Datenschutz | Kontakt | English
Schriftgröße: [-] Text [+]

Adjoint gradient-based approach for aerodynamic optimization of transport aircraft

Ilic, Caslav (2013) Adjoint gradient-based approach for aerodynamic optimization of transport aircraft. European Conference on Computational Optimization (EUCCO), 2013-07-17 - 2013-07-19, Chemnitz, Germany.

[img]
Vorschau
PDF
1MB

Kurzfassung

Aerodynamic design of transport aircraft has been steadily improved over past several decades, to the point where today highly-detailed shape control is needed to achieve further improvements. Aircraft manufacturers are therefore increasingly looking into formal optimization methods, driving high-fidelity CFD analysis of finely-parametrized candidate designs. We present an adjoint gradient-based approach for maximizing the aerodynamic performance index relevant to cruise-climb mission segment by modifying the aircraft wing shape. The test baseline geometry is a wing-body configuration based on the Do-728 regional jet, over which a hybrid structured-unstructured CFD grid is generated. For primal and adjoint aerodynamic analysis we employ the DLR TAU flow solver in RANS mode, with Spalart-Allmaras turbulence model. In each optimization cycle, multiple flight points are evaluated in order to make the final shape more robust to off-design flight conditions. Constraints are placed on pitching moment and wing root bending moment, to counter shape modifications unfavorable to trimming and structural mass. The wing shape is modified by free-form deformation (FFD), with positions of FFD control points being the design parameters. An SQP optimizer is used to drive the optimization.

elib-URL des Eintrags:https://elib.dlr.de/86003/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Adjoint gradient-based approach for aerodynamic optimization of transport aircraft
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Ilic, Caslavcaslav.ilic (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:Juli 2013
Referierte Publikation:Nein
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:optimization, aerodynamic, adjoint, gradient
Veranstaltungstitel:European Conference on Computational Optimization (EUCCO)
Veranstaltungsort:Chemnitz, Germany
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:17 Juli 2013
Veranstaltungsende:19 Juli 2013
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Starrflügler (alt)
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Starrflüglerforschung
DLR - Teilgebiet (Projekt, Vorhaben):L - Flugphysik (alt)
Standort: Braunschweig
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Transportflugzeuge
Hinterlegt von: Ilic, Caslav
Hinterlegt am:06 Dez 2013 14:08
Letzte Änderung:24 Apr 2024 19:52

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Gestaltung Webseite und Datenbank: Copyright © Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.