Recently, the concept of the application of hybrid laminar flow to modern commercial transport aircraft was successfully flight tested on a Boeing 757 aircraft. In this limited demonstration, in which only part of the upper surface of the swept wing was designed for the attainment of laminar flow, significant local drag reduction was measured. This paper addresses the potential application of this technology to laminarize the external surface of large, modern turbofan engine nacelles which may comprise as much as 5-10 percent of the total wetted area of future commerial transports. A hybrid-laminar-flow-control (HLFC) pressure distribution is specified and the corresponding nacelle geometry is computed utilizing a predictor/corrector design method. Linear stability calculations are conducted to provide predictions of the extent of the laminar boundary layer. Performance studies are presented to determine potential benefits in terms of reduced fuel consumption.


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    Titel :

    Application of laminar flow control to high-bypass-ratio turbofan engine nacelles


    Weitere Titelangaben:

    Messung der laminaren Strömung als Gestaltungskriterium für Gehäuse von Turbofan-Triebwerken mit hohen Sekundärströmungsverhältnis


    Beteiligte:
    Wie, Y.S. (Autor:in) / Collier, F.S. jun. (Autor:in) / Wagner, R.D. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1991


    Format / Umfang :

    10 Seiten, 12 Bilder, 1 Tabelle, 13 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Application of Laminar Flow Control to High-Bypass-Ratio Turbofan Engine Nacelles

    Collier, F. S. / Wagner, R. D. / Wie, Y. S. | SAE Technical Papers | 1991


    Hybrid Laminar Flow Control Applied to Advanced Turbofan Engine Nacelles

    Collier, F. S. / Arcara, P. C. / Wie, Y. S. | SAE Technical Papers | 1992


    Hybrid laminar flow control applied to advanced turbofan engine nacelles

    Collier, F. S., Jr. / Arcara, P. C., Jr. / Wie, Y. S. | NTRS | 1992


    Hybrid laminar flow technology for aero-engine nacelles

    Mullender, A.J. / Poll, D.I.A. | Tema Archiv | 1995


    Hybrid Laminar Flow Technology for Aero-Engine Nacelles

    Mullender, A. J. / Poll, D. I. A. / International Society for Air Breathing Engines; Australian Committee | British Library Conference Proceedings | 1995