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The Flight Testing of Natural and Hybrid Laminar Flow Nacelles

Riedel, H. (1994) The Flight Testing of Natural and Hybrid Laminar Flow Nacelles. International Gas Turbine and Aeroengine Congress and Exposition The Hague, Netherlands - June 13-16, 1994, Paper 94-GT-408.

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Abstract

The achievement of large areas of laminar flow over aircraft engine nacelles offers significant savings in aircraft fuel consumption. Based upon current engine configurations nett sfc benefits of up to 2% are possible. In addition the engine nacelle is ideally suited to the early inclusion of laminar flow technology, being relatively self contained with the possibility of application to existing airframes. In September 1992 a European Consortium managed by Rolls Royce including MTU and DLR began flight testing of a natural laminar flow nacelle. This programme was later extended by R-R and DLR to flight test a hybrid laminar flow nacelle featuring boundary layer suction and insect contamination protection. The tests evaluated the effects of flight and engine environment, boundary layer transition phenomena, suction system operation and insect contamination avoidance strategies. This paper describes the global conclusions from these tests which are a significant milestone leading to the future application of laminar flow technology to engine nacelles.

Document Type:Conference or Workshop Item (Speech)
Additional Information: LIDO-Berichtsjahr=1994, pages=14,
Title:The Flight Testing of Natural and Hybrid Laminar Flow Nacelles
Authors:
AuthorsInstitution or Email of Authors
Riedel, H.UNSPECIFIED
Date:1994
Status:Published
Keywords:Natural Laminar Flow Nacelle, Hybrid Laminar Flow Nacelle, Aerodynami c Design, Flight Testing
Event Title:International Gas Turbine and Aeroengine Congress and Exposition The Hague, Netherlands - June 13-16, 1994, Paper 94-GT-408
HGF - Research field:UNSPECIFIED
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
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: elib DLR-Beauftragter
Deposited On:03 Apr 2006
Last Modified:27 Apr 2009 10:05

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