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Drag Reduction of a 2D Airfoil with Constraints on Lift and Pressure Distribution using Adjoint Approach

Ma, Fei and Brezillon, Joel and Abu-Zurayk, Mohammad and Ilic, Caslav (2011) Drag Reduction of a 2D Airfoil with Constraints on Lift and Pressure Distribution using Adjoint Approach. 15. STAB-Workshop, 9-10 Nov. 2011, Göttingen, Deustchland.

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Abstract

The paper presents an alternative way to minimize the target pressure residual over parts where laminar flow should occur - typically some percent of the upper and lower front parts – and to perform a classical drag minimization at target lift and pitching moment at the same time. This approach allows 1) to ensure that the final geometry satisfies the target aerodynamic performance 2) to design a laminar profile with a low wave drag, without the use of laminar transition criteria in the optimization process.

Document Type:Conference or Workshop Item (Speech)
Title:Drag Reduction of a 2D Airfoil with Constraints on Lift and Pressure Distribution using Adjoint Approach
Authors:
AuthorsInstitution or Email of Authors
Ma, FeiFei.Ma@dlr.de
Brezillon, JoelJoel.Brezillon@dlr.de
Abu-Zurayk, MohammadMohammed.Abu-Zurayk@dlr.de
Ilic, CaslavCaslav.Ilic@dlr.de
Date:November 2011
Status:Published
Keywords:CFD, Adjoint, Optimisation, Inverse Design, Laminar Airfoil
Event Title:15. STAB-Workshop
Event Location:Göttingen, Deustchland
Event Type:national Conference
Event Dates:9-10 Nov. 2011
Organizer:DGLR
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology
Deposited By: Joel Brezillon
Deposited On:07 Dec 2011 15:55
Last Modified:12 Dec 2013 21:27

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