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Feasibility Study on the Design of a Laminar Flow Nacelle.

Radespiel, R. and Horstmann, K.H. and Redeker, G. (1990) Feasibility Study on the Design of a Laminar Flow Nacelle. Journal of Aircraft 27 (1990) No. 11, No. 10.

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Abstract

This paper describes the design of a laminar flow nacelle using numerical flow methods. With an appropriate contouring of the nacelle, natural laminar flow is maintained up to 60 % of the nacelle length at cruise flight conditions. The drag reduction that is obtained if a transport aircraft is equipped with two laminar flow nacelles instead of conventional turbulent nacelles is estimated at delta C index D &#61 0.0011. The behaviour of the laminar flow nacelle is also investigated for takeoff and landing conditions.It is found that the inlet of the new nacelle is not more sensitive to flow separation than conventional nacelles.

Document Type:Article
Additional Information: institution=AIAA, LIDO-Berichtsjahr=1990, pages=7,
Title:Feasibility Study on the Design of a Laminar Flow Nacelle.
Authors:
AuthorsInstitution or Email of Authors
Radespiel, R.UNSPECIFIED
Horstmann, K.H.UNSPECIFIED
Redeker, G.UNSPECIFIED
Date:1990
Journal or Publication Title:Journal of Aircraft 27 (1990) No. 11
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:No. 10
Series Name:Vol. 27
Status:Published
Keywords:Nacelle Design, Natural Laminar Flow, By-Pass Ratio, Euler Equations
HGF - Research field:UNSPECIFIED
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:no assignment
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 10:04

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