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Applications of modeFRONTIER on Aeronautical Problems: an overview of experiences at the German Aerospace Centre (DLR)

Brezillon, Joel and Guntzer, Frederic (2010) Applications of modeFRONTIER on Aeronautical Problems: an overview of experiences at the German Aerospace Centre (DLR). International modeFRONTIER Users’ Meeting 2010, 27.-28. Mai 2010, Trieste, Italien.

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Abstract

The presentation will give an overview of the work performed at the German Aerospace Center, Institute of Aerodynamics and Flow Technology, on the applications of modeFRONTIER optimization framework for solving industry relevant aeronautical problems. The efficiency of the gradient based optimization strategies NLPQLP will be for instance assessed on high-lift device design to improve the take off performance of an aircraft. Here the aerodynamic coefficients are computed thanks to in-house Computational Fluid Dynamics (CFD) method and combined with the adjoint approach for efficient computation of the sensitivities. Such approach allows designing a new high-lift configuration in a turn around time never obtained so far. On more complex problems featuring multi-modal design space, robust optimization strategies are of main importance to ensure to be not trapped by a local minimum. The use of genetic algorithm is here of particular interest and has been applied to find innovative flight procedures for helicopter allowing noise abatement. Finally, in the case where the design has to deal with different goal functions that can not be easily combined, the use of Multi-Objective approach is of great help to find a set of good candidates. Such approaches was applied for the design of a green supersonic aircraft that has to feature low sonic boom signature, low maximum take of weight while ensuring a given flight range. All these examples will be presented in details during the talk and the lesson learned will be addressed as well.

Item URL in elib:https://elib.dlr.de/66537/
Document Type:Conference or Workshop Item (Speech)
Title:Applications of modeFRONTIER on Aeronautical Problems: an overview of experiences at the German Aerospace Centre (DLR)
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Brezillon, JoelJoel.Brezillon (at) dlr.deUNSPECIFIED
Guntzer, FredericFrederic.Guntzer (at) dlr.deUNSPECIFIED
Date:May 2010
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Keywords:Optimisation, multi-objective, aerodynamics, acoustics, MDO
Event Title:International modeFRONTIER Users’ Meeting 2010
Event Location:Trieste, Italien
Event Type:international Conference
Event Dates:27.-28. Mai 2010
Organizer:Esteco
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 - Simulation & Validation (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Transport Aircraft
Deposited By: Brezillon, Joel
Deposited On:25 Nov 2010 09:33
Last Modified:25 Nov 2010 09:33

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