Simple formulas to be used in the conceptual design phase of civil aircraft for the calculation of principal dimensions and external surface of nacelles for single and double stream engines with turbocompressors are derived and verified. Nacelle surfaces of 35 engines, used in existing or planned aircraft, are determined to verify the formulas. Missing essential dimensions, such as inlet diameter and nacelle length, are referred to performance magnitudes such as bypass ratio and propulsion. Introducing (semi-) static relations, formulas whose applicability depends on available data are derived. An accuracy of 6.5% is reached; the most simple formula has a standard deviation of 12%.


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    Title :

    De Berekening van Het Omspoeld Gondeloppervlak van Enkel- en Dubbelstroom Straalmotoren voor Civiele Vliegtuigen (Calculation of the External Nacelle Surface for Single and Double Stream Jet Engines for Civil Aircraft)


    Contributors:

    Publication date :

    1983


    Size :

    40 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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