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Numerical Investigation of Wing-Nacelle Interference Effects at Transonic Flow Conditions for a Generic Transport Aircraft Configuration

Soda, A. and Tefy, T. (2002) Numerical Investigation of Wing-Nacelle Interference Effects at Transonic Flow Conditions for a Generic Transport Aircraft Configuration. 13. DGLR-Fach-Symposium der STAB, Munich, Germany, 12-14 November 2002.

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Abstract

A detailed numerical and experimental investigation of the steady/unsteady wing-pylon-nacelle interference effects on flutter characteristics has been initiated between DLR and ONERA. This paper presents prelimary numerical simulation results of steady flow phenomena occurring in the engine region of a generic aircraft configuration. Main issues of this project phase are parameter investigation and definition of a wind-tunnel model geometry which is used for the forthcoming experimental measurements. Several geometry and flow parameters are varied and their influence on interference phenomena is investigated in order to design the final model geometry which satisfies given wind-tunnel and production constraints. Results show that, for the development and strength of interference effects, the nacelle yaw angle and the wing-nacelle overlapping parameters play the crucial role while the effect of wing sweep angle parameter is similar to that of nacelle yaw angle. Thus interference effects of a swept wing-nacelle configuration can be simulated by a rectangular wing with nacelle and pylon yaw degree of freedom.

Item URL in elib:https://elib.dlr.de/14503/
Document Type:Conference or Workshop Item (Speech)
Additional Information: LIDO-Berichtsjahr=2005,
Title:Numerical Investigation of Wing-Nacelle Interference Effects at Transonic Flow Conditions for a Generic Transport Aircraft Configuration
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Soda, A.UNSPECIFIEDUNSPECIFIED
Tefy, T.UNSPECIFIEDUNSPECIFIED
Date:2002
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 82-90
Status:Published
Keywords:CFD, wing-nacelle interference, transonic flow
Event Title:13. DGLR-Fach-Symposium der STAB, Munich, Germany, 12-14 November 2002
Organizer:DGLR
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L ST - Starrflüglertechnologien
DLR - Research theme (Project):UNSPECIFIED
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: Erdmann, Daniela
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 21:56

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