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Fluid-Dynamic Optimization of the Cabin Air Outlet Do728-KLA with Adjoint Sensitivity Analysis

Lincke, Anne and Lauenroth, Gerrit and Rung, Thomas and Wagner, Claus (2014) Fluid-Dynamic Optimization of the Cabin Air Outlet Do728-KLA with Adjoint Sensitivity Analysis. In: New Results in Numerical and Experimental Fluid Mechanics IX Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 124. Springer Verlag, Cham Heidelberg New York Dordrecht London. pp. 75-82. ISBN 978-3-319-03157-6. ISSN 1612-2909

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Official URL: http://link.springer.com/chapter/10.1007/978-3-319-03158-3_8

Abstract

This paper is concerned with shape optimization based on continuous adjoint sensitivity analysis with respect to fluid-dynamic cost functions such as uniformity of flow or pressure loss. The solution of the primal and the corresponding adjoint incompressible Reynolds-averaged Navier-Stokes (RANS) equations leads to the sensitivity, which specifies in combination with a normal vector and a proper step size, how body contours should be modified in order to obtain an improvement of the cost function toward a local minimum. Focal point is the application to an aircraft cabin air outlet. According to the specification of the sensitivity the initial geometry is deformed. A further RANS simulation illustrates numerically that the cost function notably improves. Additionally, Particle Image Velocimetry (PIV) measurements are accomplished in order to validate the numerical results.

Item URL in elib:https://elib.dlr.de/88328/
Document Type:Contribution to a Collection
Additional Information:Online ISBN: 978-3-319-03158-3; DOI:10.1007/978-3-319-03158-3_8; ISBN: 978-3-319-03158-3 (eBook); Library of Congress Control Number: 2013957123
Title:Fluid-Dynamic Optimization of the Cabin Air Outlet Do728-KLA with Adjoint Sensitivity Analysis
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Lincke, AnneHamburg University of Technology, Institute for Fluid Dynamics and Ship Theory,UNSPECIFIED
Lauenroth, Gerritgerrit.lauenroth (at) dlr.deUNSPECIFIED
Rung, ThomasHamburg University of Technology, Institute for Fluid Dynamics and Ship Theory,UNSPECIFIED
Wagner, Clausclaus.wagner (at) dlr.deUNSPECIFIED
Date:2014
Journal or Publication Title:New Results in Numerical and Experimental Fluid Mechanics IX
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:124
Page Range:pp. 75-82
Editors:
EditorsEmail
Dillmann, AndreasDeutsches Zentrum für Luft- und
Heller, GerdAirbus Deutschland, Bremen
Krämer, EwaldUniversity of Stuttgart
Krepiln, Hans-PeterDeutsches Zentrum für Luft- und
Nitsche, WolfgangTU Berlin
Rist, UlrichUniversity of Stuttgart
Publisher:Springer Verlag, Cham Heidelberg New York Dordrecht London
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
ISSN:1612-2909
ISBN:978-3-319-03157-6
Status:Published
Keywords:sensitivity analysis, adjoint Navier-Stokes equations, shape optimization, particle image velocimetry
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems & Cabin (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Fluid Systems
Deposited By: Micknaus, Ilka
Deposited On:26 Mar 2014 13:34
Last Modified:26 Mar 2014 13:34

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