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An Integrated Method for Determination of the Oswald Factor in a Multi-Fidelity Design Environment

Böhnke, Daniel and Jepsen, Jonas and Pfeiffer, Till and Nagel, Björn and Gollnick, Volker and Liersch, Carsten (2011) An Integrated Method for Determination of the Oswald Factor in a Multi-Fidelity Design Environment. CEAS 2011, 24. Okt. - 28. Okt. 2011, Venedig, Italien.

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Abstract

Aircraft conceptual design often focuses on unconventional configurations like for example forward swept wings. Assessing the characteristics of these configurations usually requires the use of physic based analysis modules. This is due to the fact that for unconventional configurations no sucient database for historic based analysis modules is available. Nevertheless, physic based models require a lot of input data and their computational cost can be high. Generating input values in a trade study manually is work-intensive and error-prone. Conceptual design modules can be used to generate sucient input data for physic based models and their results can be re-integrated into the conceptual design phase. In this study a direct link between a conceptual design module and an aerodynamic design module is presented. Geometric information is generated by the conceptual design module and the physic based results, in form of the Oswald factor, are then fed back. Apart from the direct link, an equation for determination of the Oswald factor is derived via a Symbolic Regression Approach.

Document Type:Conference or Workshop Item (Paper)
Title:An Integrated Method for Determination of the Oswald Factor in a Multi-Fidelity Design Environment
Authors:
AuthorsInstitution or Email of Authors
Böhnke, Danieldaniel.boehnke@dlr.de
Jepsen, Jonasj.jepsen@tuhh.de
Pfeiffer, Tilltill.pfeiffer@dlr.de
Nagel, Björnbjoern.nagel@dlr.de
Gollnick, Volkervolker.gollnick@dlr.de
Liersch, Carstencarsten.liersch@dlr.de
Date:2011
Status:Published
Keywords:Multi-Fidelity CPACS, Distributed Design Environment
Event Title:CEAS 2011
Event Location:Venedig, Italien
Event Type:international Conference
Event Dates:24. Okt. - 28. Okt. 2011
Organizer:CEAS
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 - Simulation & Validation
Location: Braunschweig , Hamburg
Institutes and Institutions:Lufttransportsysteme > Integrierter Luftfahrzeugentwurf
Deposited By: Daniel Böhnke
Deposited On:25 Jan 2012 08:06
Last Modified:12 Dec 2013 21:35

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