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Automated Multidisciplinary Optimization of a Transonic Axial Compressor

Siller, Ulrich and Voß, Christian and Nicke, Eberhard (2009) Automated Multidisciplinary Optimization of a Transonic Axial Compressor. 47th AIAA Aerospace Sciences Meeting, 5 - 8 January 2009, Orlando, Florida, USA.

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The current paper describes DLR’s optimizer AutoOpti, the implementation of the metamodel “Kriging” as accelerating technique, and the process chain in the automated, multidisciplinary optimization of fans and compressors on basis of a recent full stage optimization of a highly loaded, transonic axial compressor. Methods and strategies for an aerodynamic performance map optimization coupled with a finite element analysis on the structural side are presented. The high number of 231 free design parameters, a very limited number of CFD simulations, and conflicting demands both within the aerodynamic requirements and between the disciplines are a challenging optimization task. To navigate such a multi-dimensional search space, metamodels have successfully been used as accelerating technique. Using four aerodynamic operating points at two rotational speeds allows adjusting a required stability margin and optimizing the working line performance under this constraint. The investigated compressor concept is a highly loaded transonic stage with a single row rotor and a tandem stator, designed for a very high total pressure ratio.

Document Type:Conference or Workshop Item (UNSPECIFIED)
Title:Automated Multidisciplinary Optimization of a Transonic Axial Compressor
AuthorsInstitution or Email of Authors
Siller, Ulrichulrich.siller@dlr.de
Voß, Christianchristian.voss@dlr.de
Nicke, Eberhardeberhard.nicke@dlr.de
Keywords:Verdichter Optimierung Transonisch NDV Fan
Event Title:47th AIAA Aerospace Sciences Meeting
Event Location:Orlando, Florida, USA
Event Type:international Conference
Event Dates:5 - 8 January 2009
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Propulsion Systems
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Fan and Compressor Technologies
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology > Fan and Compressor
Deposited By: Georg Ulrich Siller
Deposited On:23 Aug 2010 08:50
Last Modified:12 Dec 2013 21:00

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