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Winglet Shape and Load Optimization with a numerically supported Lifting Line Method

Himisch, Jan (2008) Winglet Shape and Load Optimization with a numerically supported Lifting Line Method. 12th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, 2008-09-10 - 2008-09-12, Victoria, British Columbia.

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Abstract

The aim of the following text is to illustrate a method to predict the aerodynamic impact of a local wing geometry change. In the presented example a winglet was designed for a given configuration. To select the most promising design under consideration of given structural boundary conditions a lifting-line-method was used to reduce the amount of numerical computation time. As lifting-line-methods are only capable to predict the induced drag effect, initial numerical simulations of the basis reference geometry were used to consider some of the additional effects, like the one of changing the wetted surface area, by comparing those numerical results with the known equations of a quadratic drag polar. It will be shown that the resulting method is under limitations accurate enough to pre-predict the numerical results of certain winglet designs, and therefore is capable to help reducing the time needed for the overall design process.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Winglet Shape and Load Optimization with a numerically supported Lifting Line Method
Authors:
AuthorsInstitution or Email of Authors
Himisch, JanUNSPECIFIED
Date:September 2008
Refereed publication:No
In ISI Web of Science:No
Editors:
EditorsEmail
AIAA, UNSPECIFIED
Status:Accepted
Keywords:Winglet, Lifting-Line, Retrofit, Optimization
Event Title:12th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference
Event Location:Victoria, British Columbia
Event Type:international Conference
Event Dates:2008-09-10 - 2008-09-12
Organizer:American Institute of Aeronautics and Astronautics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignement
DLR - Research theme (Project):L -- no assignement
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Configuration Design
Deposited By: Jan Himisch
Deposited On:13 Mar 2009
Last Modified:12 Dec 2013 20:36

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