The trend in military aircraft is toward increasing thrust loading for improved maneuverability coupled with a requirement for extended subsonic cruise range at low power settings. Conventional turbine engines designed to meet these requirements must operate over large ranges of airflow between maximum power and cruise. As a result, the inlets and nozzles designed for these engines cannot perform efficiently with the low airflow rates typical of subsonic cruise operation. Variable turbine geometry, however, offers a promising approach for obtaining both high thrust loading and efficient cruise performance by permitting large amounts of thrust modulation at constant airflow rates. As an example, the performance of a turbojet engine, which provides efficient high-thrust maneuvering and supersonic operation, can be improved by variable turbine geometry to the point where it is competitive with a fixed-turbine-geometry turbofan engine in the low-thrust subsonic cruise regime. (Modified author abstract)


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Influence of Variable Turbine Geometry on Engine Installation Losses and Cycle Selection


    Beteiligte:
    R. J. May (Autor:in) / W. F. Zavatkay (Autor:in)

    Erscheinungsdatum :

    1973


    Format / Umfang :

    34 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Turbine engine variable cycle selection program summary

    Glaser, F.C. / Weber, W.B. | Tema Archiv | 1977


    Turbine Engine Variable Cycle Selection Program Summary

    F. C. Glaser / W. B. Weber | NTIS | 1977


    Turbine engine variable geometry device

    Rogo, Casimir / Lenz, Herman N. | NTRS | 1985


    Reducing Throttle Losses Using Variable Geometry Turbine (VGT) in a Heavy-Duty Spark-Ignited Natural Gas Engine

    Kaiadi, M. / Tunestal, P. / Johansson, B. et al. | British Library Conference Proceedings | 2011


    Reducing Throttle Losses Using Variable Geometry Turbine (VGT) in a Heavy-Duty Spark-Ignited Natural Gas Engine

    Johansson, Bengt / Kaiadi, Mehrzad / Tunestal, Per | SAE Technical Papers | 2011