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Pylon Modification Study for Optimizing the Wing-Engine Integration of the Fairchild/Dornier 728 Jet Aircraft

Vidjaja, V.T. and Ronzheimer, A. and Schawe, D. (2000) Pylon Modification Study for Optimizing the Wing-Engine Integration of the Fairchild/Dornier 728 Jet Aircraft. DLR-Interner Bericht. 129-00/10, 87 S.

Full text not available from this repository.

Abstract

A numerical investigation is carried out to optimize the engine/airframe integration of closely coupled engines on a twin-jet regional transport aircraft in cruise flight condition. Since the engine position variation cannot be efficiently applied for such closely coupled engines, the optimization of the engine integration is performed by modifying the pylon, wing and engine. This investigation shows that pylon contour modifications enable an optimization of the engine integration. The modification of the pylon geometry within the jet stream dominates the engine interference on the wing since it changes the characteristics of the jet stream so that the tunnel effects are reduced significantly. The modification of the pylon geometry outside of the jet stream leads only to an insignificant change of the engine interference on the wing. Therefore the wing modification does not hold promise for a superior optimization of the engine integration. Furthermore, the jet stream can be also influenced by modifying the engine core cowl. The investigation shows that a small change on the core cowl contour reduces the engine interference on the wing considerably.

Document Type:Monograph (DLR-Interner Bericht)
Additional Information: LIDO-Berichtsjahr=2001,
Title:Pylon Modification Study for Optimizing the Wing-Engine Integration of the Fairchild/Dornier 728 Jet Aircraft
Authors:
AuthorsInstitution or Email of Authors
Vidjaja, V.T.UNSPECIFIED
Ronzheimer, A.UNSPECIFIED
Schawe, D.UNSPECIFIED
Date:2000
Number of Pages:87
Status:Published
Keywords:Flower, Tau, Navier-Stokes, Euler-Rechnung, Triebwerksintegration, Geometrie-Modifikation
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):L - Concepts & Integration
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Entwurfsaerodynamik
Deposited By: Claudia Grant
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 20:18

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