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Investigation and Minimization of Upsweep Drag of Aft-Loading Military Transporters with Tail Strakes

Ronzheimer, Arno (2010) Investigation and Minimization of Upsweep Drag of Aft-Loading Military Transporters with Tail Strakes. 28th AIAA Applied Aerodynamics Conference, 28 June - 1 July 2010, Chicago, Illinois.

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Abstract

The use of tail strakes on aft loading transport aircraft is a well proven technique to reduce fuselage upsweep drag. In the present paper the tail flow around a generic aircraft configuration with a swept up tail has been computed using high fidelity CFD analyses. The focus was on the influence and effectiveness of tail strakes and the interaction of the strake with the tail vortices. As it turned out that strakes placed arbitrarily may lead to decrease of aircraft performance, CFD based optimization runs were conducted to find an optimal strake position on the rear fuselage. Finally the optimized configurations were analyzed and the principle of strake tail vortex interaction aiming on a reduction of upsweep drag was clarified.

Item URL in elib:https://elib.dlr.de/66661/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Investigation and Minimization of Upsweep Drag of Aft-Loading Military Transporters with Tail Strakes
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ronzheimer, ArnoArno.Ronzheimer (at) dlr.deUNSPECIFIED
Date:28 June 2010
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Keywords:tail strakes, upsweep drag, tail vortices, CFD based optimization
Event Title:28th AIAA Applied Aerodynamics Conference
Event Location:Chicago, Illinois
Event Type:international Conference
Event Dates:28 June - 1 July 2010
Organizer:American Institute of Aeronautics and Astronautics
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 - Flight Physics (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Transport Aircraft
Deposited By: Ronzheimer, Arno
Deposited On:29 Nov 2010 15:08
Last Modified:12 Dec 2013 21:06

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